This patch fixes the case where you want to use an integer value the
floating point immediate to a VFP vmov instruction such as
vmovmi.f32 s27, #11.

If the immediate is not a float we convert it and copy it's representation
into the imm field and then carry on validating as if we originally entered
a floating point immediate.

The is considered a QoL improvement for hand assembly writers and allows more
code portability between assembler.

gas/
	* gas/config/tc-arm.c (do_neon_mov): Allow integer literal for float
	immediate.
	* testsuite/gas/arm/vfp-mov-enc.s: New.
	* testsuite/gas/arm/vfp-mov-enc.d: New.