[GAS][ARM][3/3]Add armv8.2 fp16 scalar instruction support. [Based on SE_H instruction shape for .f16, u16, s16, .16 type specifier]

[Nick Clifton]

Hi Renlin,
 
> diff --git a/gas/testsuite/gas/arm/armv8-2-fp16-scalar-thumb.d b/gas/testsuite/gas/arm/armv8-2-fp16-scalar-thumb.d
> new file mode 100644
> index 0000000000000000000000000000000000000000..f196c4a5973874cb4cb29c00aeec3c0f10fc2625
> --- /dev/null
> +++ b/gas/testsuite/gas/arm/armv8-2-fp16-scalar-thumb.d
> @@ -0,0 +1,74 @@
> +#name: ARM v8.2 FP16 support on scalar (Thumb)
> +#source: armv8-2-fp16-scalar.s
> +#objdump: -d
> +#as: -march=armv8.2-a+fp16 -mfpu=fp-armv8 -mthumb

Is this new test going to work on PE and COFF based ARM targets ?

Cheers
  Nick