Add the endian reversing versions of load/store instructions;

Add the endian reversing versions of load/store instructions;

2012-11-14  Edgar E. Iglesias <edgar.iglesias@gmail.com>

	* microblaze-opc.h: Increase MAX_OPCODES (op_code_struct):  add lbur,
	lhur, lwr, sbr, shr, swr
	* microblaze-opcm.h (microblaze_instr): add lbur, lhur, lwr, sbr, shr,
	swr

2012-11-14  David Holsgrove  <david.holsgrove@xilinx.com>

	* gas/microblaze/allinsn.exp: New file - test newly added opcodes
	* gas/microblaze/allinsn.s: Likewise
	* gas/microblaze/allinsn.d: Likewise