Fix disassembly of fully-linked --emit-relocs objects on ARM

[Nick Clifton]

Hi Richard,

> binutils/
> 	* objdump.c (disassemble_bytes): Ignore disassembler_needs_relocs
> 	for executables and shared libraries.
> 
> ld/testsuite/
> 	* ld-arm/emit-relocs1.d, ld-arm/emit-relocs1.s,
> 	* ld-arm/emit-relocs1-vxworks.d: New tests.
> 	* ld-arm/arm-elf.exp: Run them.

Approved - please apply.

Cheers
   Nick