Add TARGET_MMX_WITH_SSE to the condition of all 64-bit _Float16 vector related patterns.

gcc/ChangeLog:

	PR target/123484
	* config/i386/mmx.md (divv4hf3): Add TARGET_MMX_WITH_SSE to
	the condition.
	(cmlav4hf4): Ditto.
	(cmla_conjv4hf4): Ditto.
	(cmulv4hf3): Ditto.
	(cmul_conjv4hf3): Ditto.

gcc/testsuite/ChangeLog:

	* gcc.target/i386/pr123484.c: New test.

(cherry picked from commit 808fc71d15a458cc627f187449fac4f2b6d6cb3f)