Implement Intel SMAP instructions

Implement Intel SMAP instructions

gas/

	PR gas/15159
	* config/tc-i386.c (cpu_arch): Add ".smap".

	* doc/c-i386.texi: Document smap.

gas/testsuite/

	PR gas/15159
	* gas/i386/i386.exp: Run smap and x86-64-smap.

	* gas/i386/smap.d: New file.
	* gas/i386/smap.s: likewise.
	* gas/i386/x86-64-smap.d: likewise.

opcodes/

	PR gas/15159
	* i386-dis.c (rm_table): Add clac and stac to RM_0F01_REG_1.

	* i386-gen.c (cpu_flag_init): Add CPU_SMAP_FLAGS.
	(cpu_flags): Add CpuSMAP.

	* i386-opc.h (CpuSMAP): New.
	(i386_cpu_flags): Add cpusmap.

	* i386-opc.tbl: Add clac and stac.

	* i386-init.h: Regenerated.
	* i386-tbl.h: Likewise.