i386.md (isa): Remove fma_avx512f.

i386.md (isa): Remove fma_avx512f.

	* config/i386/i386.md (isa): Remove fma_avx512f.
	* config/i386/sse.md (<avx512>_fmadd_<mode>_mask<round_name>,
	<avx512>_fmadd_<mode>_mask3<round_name>,
	<avx512>_fmsub_<mode>_mask<round_name>,
	<avx512>_fmsub_<mode>_mask3<round_name>,
	<avx512>_fnmadd_<mode>_mask<round_name>,
	<avx512>_fnmadd_<mode>_mask3<round_name>,
	<avx512>_fnmsub_<mode>_mask<round_name>,
	<avx512>_fnmsub_<mode>_mask3<round_name>,
	<avx512>_fmaddsub_<mode>_mask<round_name>,
	<avx512>_fmaddsub_<mode>_mask3<round_name>,
	<avx512>_fmsubadd_<mode>_mask<round_name>,
	<avx512>_fmsubadd_<mode>_mask3<round_name>): Remove isa attribute.
	(*vec_widen_umult_even_v16si<mask_name>,
	*vec_widen_smult_even_v16si<mask_name>): Likewise.
	(<mask_codefor>avx512bw_dbpsadbw<mode><mask_name>): Likewise.

From-SVN: r253939