[RFA] Small fixes to ld-arm testsuite

[Nick Clifton]

Hi Matt,

> 2010-02-23  Matthew Gretton-Dann<matthew.gretton-dann@arm.com>
>
> 	* ld-arm/group-relocs.s: Mark code sections as executable.
> 	* ld-arm/arm-elf.exp (armelftests): Only dump executable
> 	sections in group-relocs test.
> 	* ld-arm/reloc-boundaries.d: Fix test to work on Linux targets.

Approved - please apply.

Cheers
   Nick