i386: Combine AVX10.2 compile time test

Since AVX10.2 enables everything, there is no need to split testcases
for 256 and 512 bit size.

gcc/testsuite/ChangeLog:

	* gcc.target/i386/avx10_2-512-bf16-1.c: Removed and combined ...
	* gcc.target/i386/avx10_2-bf16-1.c: ... to this.
	* gcc.target/i386/avx10_2-512-bf16-vector-cmp-1.c: Removed and
	combined ...
	* gcc.target/i386/avx10_2-bf16-vector-cmp-1.c:... to this.
	* gcc.target/i386/avx10_2-512-bf16-vector-fma-1.c: Removed and
	combined ...
	* gcc.target/i386/avx10_2-bf16-vector-fma-1.c:... to this.
	* gcc.target/i386/avx10_2-512-bf16-vector-operations-1.c: Removed
	and combined ...
	* gcc.target/i386/avx10_2-bf16-vector-operations-1.c:... to this.
	* gcc.target/i386/avx10_2-512-bf16-vector-smaxmin-1.c: Removed
	and combined ...
	* gcc.target/i386/avx10_2-bf16-vector-smaxmin-1.c:... to this.
	* gcc.target/i386/avx10_2-512-convert-1.c: Removed and combined ...
	* gcc.target/i386/avx10_2-convert-1.c:... to this.
	* gcc.target/i386/avx10_2-512-media-1.c: Removed and combined ...
	* gcc.target/i386/avx10_2-media-1.c:... to this.
	* gcc.target/i386/avx10_2-512-minmax-1.c: Removed and combined ...
	* gcc.target/i386/avx10_2-minmax-1.c:... to this.
	* gcc.target/i386/avx10_2-512-movrs-1.c: Removed and combined ...
	* gcc.target/i386/avx10_2-movrs-1.c:... to this.
	* gcc.target/i386/avx10_2-512-satcvt-1.c: Removed and combined ...
	* gcc.target/i386/avx10_2-satcvt-1.c:... to this.
	* gcc.target/i386/sm4-avx10_2-512-1.c: Move to...
	* gcc.target/i386/sm4-avx10_2-1b.c: ...here.

Author: jianghc724