[PATCH] A few ppc assembler fixes

[Alan Modra]

If I'm not mistaken the dcbt/dcbtst change will affect the following
-m options.

 -m601		+server
 -mppc		+server
 -mppc32	+server
 -m603		+server
 -m604		+server
 -m403		+server
 -m405		+server
 -m476		-server
 -m7400		+server
 -m7410		+server
 -m7450		+server
 -m7455		+server
 -m750cl	+server
 -mppc64	+server
 -m620		+server
 -mppc64bridge	+server
 -ma2		-server
 -me300		+server
 -me5500	-server
 -me6500	-server
 -mspe		+server

where "+server" means previously used the embedded operand order, and
now uses the server operand order, and "-server" is vice versa.

OK, so -m476 and -ma2 are fixes.  Did you intend all the others?

-- 
Alan Modra
Australia Development Lab, IBM