build: Generate package-config file

Change-Id: I4aeaa38e190d2327e08106d42f83f9476beccccd
Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
diff --git a/configure.ac b/configure.ac
index f194a38..35f80a2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -34,4 +34,5 @@
     [${srcdir}/generate_makefile.sh ${srcdir} > Makefile.interfaces])
 
 AC_CONFIG_FILES([Makefile])
+AC_CONFIG_FILES([openpower-dbus-interfaces.pc])
 AC_OUTPUT