pkgconfig: Add libqb dependency

To make sure libqb dependency is visible across all libraries.

Signed-off-by: Fabio M. Di Nitto <fdinitto@redhat.com>
Reviewed-by: Jan Friesse <jfriesse@redhat.com>
(cherry picked from commit 1eb12d30a08186b13ee965e36ecdf496ba0a6fe2)

pkgconfig/libtemplate.pc.in

@@ -6,6 +6,6 @@ includedir=${prefix}/include
 Name: @LIB@
 Version: @LIBVERSION@
 Description: @LIB@
-Requires:
+Requires: libqb
 Libs: -L${libdir} -l@LIB@
 Cflags: -I${includedir}