[MIPS] Rename COPROC related macros

[MIPS] Rename COPROC related macros

gas/

	* config/tc-mips.c: Rename INSN_LOAD_COPROC_DELAY to INSN_LOAD_COPROC
	and INSN_COPROC_MOVE_DELAY to INSN_COPROC_MOVE throughout.

include/opcode/

	* mips.h (INSN_LOAD_COPROC_DELAY): Rename to...
	(INSN_LOAD_COPROC): New define.
	(INSN_COPROC_MOVE_DELAY): Rename to...
	(INSN_COPROC_MOVE): New define.

opcodes/

	* micromips-opc.c (COD): Rename throughout to...
	(CM): New define, update to use INSN_COPROC_MOVE.
	(LCD): Rename throughout to...
	(LC): New define, update to use INSN_LOAD_COPROC.
	* mips-opc.c: Likewise.