Support x86 Intel MSR_IMM

Support x86 Intel MSR_IMM

gas/ChangeLog:

	* NEWS: Support x86 Intel MSR_IMM.
	* config/tc-i386.c (cpu_arch): Add MSR_IMM.
	(cpu_flags_match): Add MSR_IMM to APX_F related processing.
	(i386_assemble): WRMSRNS's first operand is imm32, so add
	MN_wrmsrns like MN_uwrmsr.
	* doc/c-i386.texi: Document .msr_imm.
	* testsuite/gas/i386/i386.exp: Run MSR_IMM tests.
	* testsuite/gas/i386/x86-64.exp: Ditto.
	* testsuite/gas/i386/msr_imm-inval.l: New test.
	* testsuite/gas/i386/msr_imm-inval.s: Ditto.
	* testsuite/gas/i386/x86-64-msr_imm-intel.d: Ditto.
	* testsuite/gas/i386/x86-64-msr_imm.d: Ditto.
	* testsuite/gas/i386/x86-64-msr_imm.s: Ditto.

opcodes/ChangeLog:

	* i386-dis.c: Add REG_VEX_MAP7_F6_L_0_W_0,
	PREFIX_VEX_MAP7_F6_L_0_W_0_R_0_X86_64,
	X86_64_VEX_MAP7_F6_L_0_W_0_R_0,
	VEX_LEN_MAP7_F6,
	VEX_W_MAP7_F6_L_0.
	(reg_table): New entry for MSR_IMM.
	(prefix_table): Ditto.
	(x86_64_table): Ditto.
	(vex_len_table): Ditto.
	(vex_w_table): Ditto.
	(map7_f6_opcode): New variable for MAP7.
	(get_valid_dis386): Support MAP7.
	* i386-gen.c (cpu_flags): Add MSR_IMM.
	* i386-init.h: Regenerated.
	* i386-mnem.h: Ditto.
	* i386-opc.h (i386_cpu_flags): Add cpumsr_imm.
	* i386-opc.tbl: Add MSR_IMM instructions.
	* i386-tbl.h: Regenerated.