[GOLD] Update ppc do_make_elf_object for -R with ET_EXEC

[Alan Modra]

On Sat, Sep 01, 2012 at 09:26:04AM +0200, Andreas Schwab wrote:
> 	* powerpc.cc (do_make_elf_object): Allow ET_EXEC files with
> 	--just-symbols.

Please commit.  I think it's obvious enough.

-- 
Alan Modra
Australia Development Lab, IBM