[SPARC] Fix PR gas/22738

[Nick Clifton]

Hi Eric,


> 2018-01-25  Eric Botcazou  <ebotcazou@adacore.com>
> 
> gas/
> 	PR gas/22738
> 	* config/tc-sparc.h (sparc_mach): Declare.
> 	(TARGET_MACH): Define to above.
> 	* config/tc-sparc.c (sparc_mach): New function.
> 	(sparc_md_end): Minor tweak.
> 
> 
> 2018-01-25  Eric Botcazou  <ebotcazou@adacore.com>
> 
> ld/
> 	* testsuite/ld-elf/pr22450.d: Remove reference to SPARC64.
> 

Approved - please apply.

Cheers
  Nick