gas/

gas/
	* config/tc-ppc.c (ppc_setup_opcodes): Remove PPC_OPCODE_NOPOWER4 test.
	Test the new "deprecated" opcode field.

include/opcode/
	* ppc.h (struct powerpc_opcode): New field "deprecated".
	(PPC_OPCODE_NOPOWER4): Delete.

opcodes/
	* ppc-opc.c (PPCNONE): Define.
	(NOPOWER4): Delete.
	(powerpc_opcodes): Initialize the new "deprecated" field.