i386: Change mnemonics from V[RSQRT,SCALEF,SQRTNE]PBF16 to V[RSQRT,SCALEF,SQRT]BF16

i386: Change mnemonics from V[RSQRT,SCALEF,SQRTNE]PBF16 to V[RSQRT,SCALEF,SQRT]BF16

gcc/ChangeLog:

	PR target/118270
	* config/i386/avx10_2-512bf16intrin.h: Change intrin and builtin
	name according to new mnemonics.
	* config/i386/avx10_2bf16intrin.h: Ditto.
	* config/i386/i386-builtin.def (BDESC): Ditto.
	* config/i386/sse.md
	(UNSPEC_VSCALEFBF16): Rename from UNSPEC_VSCALEFPBF16.
	(avx10_2_scalefpbf16_<mode><mask_name>): Rename to...
	(avx10_2_scalefbf16_<mode><mask_name>): ...this.
	Change instruction name output.
	(avx10_2_rsqrtpbf16_<mode><mask_name>): Rename to...
	(avx10_2_rsqrtbf16_<mode><mask_name>): ...this.
	Change instruction name output.
	(avx10_2_sqrtnepbf16_<mode><mask_name>): Rename to...
	(avx10_2_sqrtbf16_<mode><mask_name>): ...this.
	Change instruction name output.

gcc/testsuite/ChangeLog:

	PR target/118270
	* gcc.target/i386/avx10_2-512-bf16-1.c: Adjust output and intrin
	call.
	* gcc.target/i386/avx10_2-512-vrsqrtpbf16-2.c: Move to...
	* gcc.target/i386/avx10_2-512-vrsqrtbf16-2.c: ...here.
	Adjust intrin call.
	* gcc.target/i386/avx10_2-512-vscalefpbf16-2.c: Move to...
	* gcc.target/i386/avx10_2-512-vscalefbf16-2.c: ...here.
	Adjust intrin call.
	* gcc.target/i386/avx10_2-512-vsqrtnepbf16-2.c: Move to...
	* gcc.target/i386/avx10_2-512-vsqrtbf16-2.c: ...here.
	Adjust intrin call.
	* gcc.target/i386/avx10_2-bf16-1.c: Adjust output and intrin
	call.
	* gcc.target/i386/avx10_2-vrsqrtpbf16-2.c: Move to...
	* gcc.target/i386/avx10_2-vrsqrtbf16-2.c: ...here.
	Adjust intrin call.
	* gcc.target/i386/avx10_2-vscalefpbf16-2.c: Move to...
	* gcc.target/i386/avx10_2-vscalefbf16-2.c: ...here.
	Adjust intrin call.
	* gcc.target/i386/avx10_2-vsqrtnepbf16-2.c: Move to...
	* gcc.target/i386/avx10_2-vsqrtbf16-2.c: ...here.
	Adjust intrin call.