Patch to h8sx short-immediate moves

[Nick Clifton]

Hi Richard,

> include/opcode/
> 	* h8300.h (IMM2_NS, IMM8_NS, IMM16_NS): Remove.
> 	(IMM8U, IMM8U_NS): Define.
> 	(h8_opcodes): Use IMM8U_NS for mov.[wl] #xx:8,@yy.
>
> gas/
> 	* config/tc-h8300.c (get_specific): Allow ':8' to be used for
> 	unsigned 8-bit operands.
>
> gas/testsuite/
> 	* gas/h8300/h8300.[sd]: Add tests for mov.[wl] #xx:8,@yy.
>

Approved - please apply

Cheers
        Nick