add new routine to stop paging

diff --git a/include/openbsc/paging.h b/include/openbsc/paging.h
index a04a906..884d163 100644
--- a/include/openbsc/paging.h
+++ b/include/openbsc/paging.h
@@ -66,4 +66,7 @@
 /* schedule paging request */
 void page_request(struct gsm_bts *bts, struct gsm_subscriber *subscr, int type);
 
+/* stop paging requests */
+void page_request_stop(struct gsm_bts *bts, struct gsm_subscriber *subscr);
+
 #endif