ld/testsuite/ld-aarch64: Fixup IFUNC tests to work on all targets

Make the ifunc-21 and ifunc-22 tests more generic to support
aarch64_be and ELF targets.

ld/testsuite/ChangeLog:

2013-12-11  Will Newton  <will.newton@linaro.org>

	* ld-aarch64/ifunc-21.d: Make test more generic to support
	aarch64_be and ELF targets.
	* ld-aarch64/ifunc-22.d: Likewise.
daily update
	* dwarf2read.c (lookup_dwo_cutu): Include name of dwp file in
	"can't find DWO" warning.