m68k: don't fail when linking in a binary object

[Alan Modra]

On Mon, May 06, 2019 at 01:01:56PM +0200, Andreas Schwab wrote:
> 	PR binutils/24523
> 	* elf32-m68k.c (elf32_m68k_merge_private_bfd_data): Return TRUE if
> 	input or output is non-ELF.

OK.  If you like, it would be reasonable to extend this patch a little
and return true for non-m68k ELF.  For one way to do that, see
ppc64_elf_merge_private_bfd_data and is_ppc64_elf.

-- 
Alan Modra
Australia Development Lab, IBM