Fix ACLE data-intrinsics testcases

Fix ACLE data-intrinsics testcases

data-intrinsics-assembly.c forces -march=armv6 using dg-add-options
arm_arch_v6, which implicitly adds -mfloat-abi=softfp.

However, for a toolchain configured for arm-linux-gnueabihf and
--with-arch=armv7-a, the testcase will fail when including arm_acle.h
(which includes stdint.h, which will fail to include the non-existing
gnu/stubs-soft.h).

Other effective-targets related to arm_acle.h would also pass because
they first try without -mfloat-abi=softfp, so it seems the
simplest/safest is to add { dg-require-effective-target arm_softfp_ok }
to make sure arm_arch_v6_ok's assumption is valid.

The patch also fixes what seems to be an oversight in
data-intrinsics-armv6.c: it requires arm_arch_v6_ok, but uses
arm_arch_v6t2: the patch makes it require arm_arch_v6t2_ok.

2023-05-30  Christophe Lyon  <christophe.lyon@linaro.org>

	gcc/testsuite/
	* gcc.target/arm/acle/data-intrinsics-armv6.c: Fix typo.
	* gcc.target/arm/acle/data-intrinsics-assembly.c: Require
	arm_softfp_ok.