target/arm: Implement FMOV (general) for fp16

target/arm: Implement FMOV (general) for fp16

Adding the fp16 moves to/from general registers.

Cc: qemu-stable@nongnu.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20180512003217.9105-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit 68130236e30a1ec64363f4915349feee181bfbc1)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>