scrub: fix Makefile targets which depend on builddefs

scrub: fix Makefile targets which depend on builddefs

Add Makefile dependencies for targets that require variables set in
builddefs.  Although most of the required variables are file paths
defined during the ./configure process, we cannot simply use
AC_CONFIG_FILES to generate the scripts because that macro only expands
one level deep and its documentation says that it's only to be used for
generating makefiles, not build targets themselves.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>