ld targ_extra_emuls and targ_extra_libpath

ld targ_extra_emuls and targ_extra_libpath

targ_extra_libpath are for those targets other than the default target
that might have libraries available in the default library search
paths.  targ_extra_emuls are for those targets that likely don't.

Sort them so those on the libpath come first.  This currently does not
have any effect except for order of compilation of e*.c and the order
printed in ld help messages, but I thought it worth doing anyway.

	* configure.ac (all_emuls): Sort targ_extra_libpath before
	targ_extra_emuls.
	* configure: Regenerate.