opcodes/

	* aarch64-tbl.h (aarch64_opcode_table): Replace IMM0 with
	FPIMM0 for fcmeq, fcmgt, fcmge, fcmlt and fcmle.

gas/testsuite/

	* gas/aarch64/fp-const0-parsing.s: New test.
	* gas/aarch64/fp-const0-parsing.d: Likewise.