PR target/89073

	PR target/89073
	* doc/invoke.texi (-mclwb, -mprfchw, -mrdpid, -mrdseed, -msgx,
	-madx, -mhle, -mavx5124fmaps, -mavx512vnni, -mavx5124vnniw): Document
	x86 ISA options.
	(bmi2): Add missing @opindex.
	* doc/extend.texi (x86 target attribute): Move fma4, lwp, ssse3
	options alphabetically.  Add missing 3dnow, 3dnowa, adx, avx, avx2,
	avx5124fmaps, avx5124vnniw, avx512bitalg, avx512bw, avx512cd,
	avx512dq, avx512er, avx512f, avx512ifma, avx512pf, avx512vbmi,
	avx512vbmi2, avx512vl, avx512vnni, avx512vpopcntdq, bmi, bmi2,
	cldemote, clflushopt, clwb, clzero, crc32, cx16, f16c, fma, fsgsbase,
	fxsr, gfni, hle, lzcnt, movbe, movdir64b, movdiri, mwaitx, pconfig,
	pku, prefetchwt1, prfchw, ptwrite, rdpid, rdrnd, rdseed, rtm, sahf,
	sgx, sha, shstk, tbm, vaes, vpclmulqdq, waitpkg, wbnoinvd, xsave,
	xsavec, xsaveopt and xsaves options.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@268335 138bc75d-0d04-0410-961f-82ee72b054a4