Support Intel SM3

Support Intel SM3

gas/ChangeLog:

	* NEWS: Support Intel SM3.
	* config/tc-i386.c: Add sm3.
	* doc/c-i386.texi: Document .sm3.
	* testsuite/gas/i386/i386.exp: Run sm3 tests.
	* testsuite/gas/i386/x86-64.exp: Ditto.
	* testsuite/gas/i386/sm3-intel.d: New test.
	* testsuite/gas/i386/sm3.d: Ditto.
	* testsuite/gas/i386/sm3.s: Ditto.
	* testsuite/gas/i386/x86-64-sm3-intel.d: Ditto.
	* testsuite/gas/i386/x86-64-sm3.d: Ditto.
	* testsuite/gas/i386/x86-64-sm3.s: Ditto.

opcodes/ChangeLog:

	* i386-dis.c (PREFIX_VEX_0F38DA_W_0): New.
	(VEX_LEN_0F38DA_W_0_P_0): Ditto.
	(VEX_LEN_0F38DA_W_0_P_2): Ditto.
	(VEX_LEN_0F3ADE_W_0): Ditto.
	(VEX_W_0F38DA): Ditto.
	(VEX_W_0F3ADE): Ditto.
	(prefix_table): Add PREFIX_VEX_0F38DA_W_0.
	(vex_len_table): Add VEX_LEN_0F38DA_W_0_P_0,
	VEX_LEN_0F38DA_W_0_P_2, VEX_LEN_0F3ADE_W_0.
	(vex_w_table): Add VEX_W_0F38DA, VEX_W_0F3ADE.
	* i386-gen.c (isa_dependencies): Add SM3.
	(cpu_flags): Ditto.
	* i386-init.h: Regenerated.
	* i386-mnem.h: Ditto.
	* i386-opc.h (CpuSM3): New.
	(i386_cpu_flags): Add cpusm3.
	* i386-opc.tbl: Add SM3 instructions.
	* i386-tbl.h: Regenerated.