* gas/mips/mips32.s: Move out coprocessor2 insns from here ...

	* gas/mips/mips32.s: Move out coprocessor2 insns from here ...
	* gas/mips/mips32-cp2.s: ... to here.
	* gas/mips/mips32.d: Update.
	* gas/mips/mips32-cp2.d: New file.
	* gas/mips/mips32r2.s: Move out coprocessor2 insns from here ...
	* gas/mips/mips32r2-cp2.s: ... to here.
	* gas/mips/mips32r2.d: Update.
	* gas/mips/mips32r2-cp2.d: New file.
	* gas/mips/mips64.s: Move out coprocessor2 insns from here ...
	* gas/mips/mips64-cp2.s: ... to here.
	* gas/mips/mips64.d: Update.
	* gas/mips/mips64-cp2.d: New file.
	* gas/mips/mips.exp: Run mips32-cp2, mips32r2-cp2 and mips64-cp
	except for Octeon.
	* gas/mips/octeon.s: Add supported coprocessor insns.  Move pop
	down to keep alphabetical order.
	* gas/mips/octeon.d: Update.
	* gas/mips/octeon-ill.s: Add unsupported coprocessor insns.
	* gas/mips/octeon-ill.l: Update.