build: install PKGHFILES in install-dev

Without this, we'll be missing xfs_fs.h and xfs_types.h when we
"make install-dev" (and xfs.h includes them).

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

1 file changed