Add AMD znver3 processor support

Add AMD znver3 processor support

gas/

	* config/tc-i386.c (cpu_arch): Add CPU_ZNVER3_FLAGS flags.
	(i386_align_code): Add PROCESSOR_ZNVER cases.
	* doc/c-i386.texi: Add znver3, snp, invlpgb and tlbsync.
	* gas/i386/i386.exp: Add new znver3 test cases.
	* gas/i386/arch-14-znver3.d: New.
	* gas/i386/arch-14.d: New.
	* gas/i386/arch-14.s: New.
	* gas/i386/invlpgb.d: New.
	* gas/i386/invlpgb64.d: New.
	* gas/i386/invlpgb.s: New.
	* gas/i386/snp.d: New.
	* gas/i386/snp64.d: New.
	* gas/i386/snp.s: New.
	* gas/i386/tlbsync.d: New.
	* gas/i386/tlbsync.s: New.
	* gas/i386/x86-64-arch-4-znver3.d: New.
	* gas/i386/x86-64-arch-4.d: New.
	* gas/i386/x86-64-arch-4.s: New.

opcodes/

	* i386-dis.c (rm_table): Add tlbsync, snp, invlpgb.
	* i386-gen.c (cpu_flag_init): Add new CPU_INVLPGB_FLAGS,
	CPU_TLBSYNC_FLAGS, and CPU_SNP_FLAGS.
	Add CPU_ZNVER3_FLAGS.
	(cpu_flags): Add CpuINVLPGB, CpuTLBSYNC, CpuSNP.
	* i386-opc.h: Add CpuINVLPGB, CpuTLBSYNC, CpuSNP.
	* i386-opc.tbl: Add invlpgb, tlbsync, psmash, pvalidate,
	rmpupdate, rmpadjust.
	* i386-init.h: Re-generated.
	* i386-tbl.h: Re-generated.