opcodes/

opcodes/

	* ppc-opc.c (DCBT_EO): New define.
	(powerpc_opcodes) <lbarx>: Enable for POWER8 and later.
	<lharx>: Likewise.
	<stbcx.>: Likewise.
	<sthcx.>: Likewise.
	<waitrsv>: Do not enable for POWER7 and later.
	<waitimpl>: Likewise.
	<dcbt>: Default to the two operand form of the instruction for all
	"old" cpus.  For "new" cpus, use the operand ordering that matches
	whether the cpu is server or embedded.
	<dcbtst>: Likewise.

gas/testsuite/

	* gas/ppc/a2.s: Fixup test case due to dcbt/dcbtst embedded operand
	ordering change.
	* gas/ppc/a2.d: Likewise.
	* gas/ppc/476.d: Likewise.
	* gas/ppc/booke.s: Remove invalid 3 operand dcbt tests.
	* gas/ppc/booke.d: Likewise.
	* gas/ppc/power7.s: Remove lbarx, lharx, stbcx., sthcx., waitrsv
	and waitimpl tests.
	* gas/ppc/power7.d: Likewise.