readelf: Report if no GOT section found Update "readelf --got-contents" to report if no GOT section found. * readelf.c (process_got_section_contents): Report if no GOT section found. * testsuite/binutils-all/readelf-got.d: New file. * testsuite/binutils-all/readelf.exp: Run readelf-got. Signed-off-by: H.J. Lu <hjl.tools@gmail.com>