When building with full lagnuage support, libelf.so will depend on and
link with libintl.so so we need to change the pkg-config template to
reflect this library dependency.
Also change the Makefile to only pass --disable-nls to configure when
the full nls support is actually disabled in the buildroot config.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
