arm: Fix MVE header pointer overloads this time (and a bit more tidying)

arm: Fix MVE header pointer overloads this time (and a bit more tidying)

Hi all,

Previously we had fixed the overloading of scalar arguments to intrinsics
with the introduction of a new `__ARM_mve_coerce3` _ Generic association.
This allowed users to give types other than int32_t, e.g. int, short, long,
etc., which previously would emit a nonsensical error message from the
_Generic.

Here I adjust that handling slightly and I am also doing the same thing, but
for pointer types:
(un)signed char* can be now used instead of (u)int8_t*
(un)signed short* can be now used instead of (u)int16_t*
(un)signed int* and long* can be now used instead of (u)int32_t*
(un)signed long long* can be now used instead of (u)int64_t*
__fp16* and _Float16* can be now used instead of float16_t*
float* can be now used instead of float32_t*

This required me to break down the _coerce_ generics for the specific
pointer types.
On the scalar types, the change in this patch is minor, renaming the
_coerce_ generics and passing all scalars through the `__typeof` for
consistency with each-other.

No test regressions in the GCC testsuite or CMSIS-NN.

gcc/ChangeLog:

	* config/arm/arm_mve.h: (__ARM_mve_typeid): Add more pointer types.
	(__ARM_mve_coerce1): Remove.
	(__ARM_mve_coerce2): Remove.
	(__ARM_mve_coerce3): Remove.
	(__ARM_mve_coerce_i_scalar): New.
	(__ARM_mve_coerce_s8_ptr): New.
	(__ARM_mve_coerce_u8_ptr): New.
	(__ARM_mve_coerce_s16_ptr): New.
	(__ARM_mve_coerce_u16_ptr): New.
	(__ARM_mve_coerce_s32_ptr): New.
	(__ARM_mve_coerce_u32_ptr): New.
	(__ARM_mve_coerce_s64_ptr): New.
	(__ARM_mve_coerce_u64_ptr): New.
	(__ARM_mve_coerce_f_scalar): New.
	(__ARM_mve_coerce_f16_ptr): New.
	(__ARM_mve_coerce_f32_ptr): New.
	(__arm_vst4q): Change _coerce_ overloads.
	(__arm_vbicq): Change _coerce_ overloads.
	(__arm_vld1q): Change _coerce_ overloads.
	(__arm_vld1q_z): Change _coerce_ overloads.
	(__arm_vld2q): Change _coerce_ overloads.
	(__arm_vld4q): Change _coerce_ overloads.
	(__arm_vldrhq_gather_offset): Change _coerce_ overloads.
	(__arm_vldrhq_gather_offset_z): Change _coerce_ overloads.
	(__arm_vldrhq_gather_shifted_offset): Change _coerce_ overloads.
	(__arm_vldrhq_gather_shifted_offset_z): Change _coerce_ overloads.
	(__arm_vldrwq_gather_offset): Change _coerce_ overloads.
	(__arm_vldrwq_gather_offset_z): Change _coerce_ overloads.
	(__arm_vldrwq_gather_shifted_offset): Change _coerce_ overloads.
	(__arm_vldrwq_gather_shifted_offset_z): Change _coerce_ overloads.
	(__arm_vst1q_p): Change _coerce_ overloads.
	(__arm_vst2q): Change _coerce_ overloads.
	(__arm_vst1q): Change _coerce_ overloads.
	(__arm_vstrhq): Change _coerce_ overloads.
	(__arm_vstrhq_p): Change _coerce_ overloads.
	(__arm_vstrhq_scatter_offset_p): Change _coerce_ overloads.
	(__arm_vstrhq_scatter_offset): Change _coerce_ overloads.
	(__arm_vstrhq_scatter_shifted_offset_p): Change _coerce_ overloads.
	(__arm_vstrhq_scatter_shifted_offset): Change _coerce_ overloads.
	(__arm_vstrwq_p): Change _coerce_ overloads.
	(__arm_vstrwq): Change _coerce_ overloads.
	(__arm_vstrwq_scatter_offset): Change _coerce_ overloads.
	(__arm_vstrwq_scatter_offset_p): Change _coerce_ overloads.
	(__arm_vstrwq_scatter_shifted_offset): Change _coerce_ overloads.
	(__arm_vstrwq_scatter_shifted_offset_p): Change _coerce_ overloads.
	(__arm_vsetq_lane): Change _coerce_ overloads.
	(__arm_vldrbq_gather_offset): Change _coerce_ overloads.
	(__arm_vdwdupq_x_u8): Change _coerce_ overloads.
	(__arm_vdwdupq_x_u16): Change _coerce_ overloads.
	(__arm_vdwdupq_x_u32): Change _coerce_ overloads.
	(__arm_viwdupq_x_u8): Change _coerce_ overloads.
	(__arm_viwdupq_x_u16): Change _coerce_ overloads.
	(__arm_viwdupq_x_u32): Change _coerce_ overloads.
	(__arm_vidupq_x_u8): Change _coerce_ overloads.
	(__arm_vddupq_x_u8): Change _coerce_ overloads.
	(__arm_vidupq_x_u16): Change _coerce_ overloads.
	(__arm_vddupq_x_u16): Change _coerce_ overloads.
	(__arm_vidupq_x_u32): Change _coerce_ overloads.
	(__arm_vddupq_x_u32): Change _coerce_ overloads.
	(__arm_vldrdq_gather_offset): Change _coerce_ overloads.
	(__arm_vldrdq_gather_offset_z): Change _coerce_ overloads.
	(__arm_vldrdq_gather_shifted_offset): Change _coerce_ overloads.
	(__arm_vldrdq_gather_shifted_offset_z): Change _coerce_ overloads.
	(__arm_vldrbq_gather_offset_z): Change _coerce_ overloads.
	(__arm_vidupq_u16): Change _coerce_ overloads.
	(__arm_vidupq_u32): Change _coerce_ overloads.
	(__arm_vidupq_u8): Change _coerce_ overloads.
	(__arm_vddupq_u16): Change _coerce_ overloads.
	(__arm_vddupq_u32): Change _coerce_ overloads.
	(__arm_vddupq_u8): Change _coerce_ overloads.
	(__arm_viwdupq_m): Change _coerce_ overloads.
	(__arm_viwdupq_u16): Change _coerce_ overloads.
	(__arm_viwdupq_u32): Change _coerce_ overloads.
	(__arm_viwdupq_u8): Change _coerce_ overloads.
	(__arm_vdwdupq_m): Change _coerce_ overloads.
	(__arm_vdwdupq_u16): Change _coerce_ overloads.
	(__arm_vdwdupq_u32): Change _coerce_ overloads.
	(__arm_vdwdupq_u8): Change _coerce_ overloads.
	(__arm_vstrbq): Change _coerce_ overloads.
	(__arm_vstrbq_p): Change _coerce_ overloads.
	(__arm_vstrbq_scatter_offset_p): Change _coerce_ overloads.
	(__arm_vstrdq_scatter_offset_p): Change _coerce_ overloads.
	(__arm_vstrdq_scatter_offset): Change _coerce_ overloads.
	(__arm_vstrdq_scatter_shifted_offset_p): Change _coerce_ overloads.
	(__arm_vstrdq_scatter_shifted_offset): Change _coerce_ overloads.

gcc/testsuite/ChangeLog:

	* gcc.target/arm/mve/intrinsics/mve_intrinsic_type_overloads-fp.c: Add testcases.
	* gcc.target/arm/mve/intrinsics/mve_intrinsic_type_overloads-int.c: Add testcases.