04.08: Make mncc-harald branch work

This fixes two reasons for crashes due to uninitialized memory or
wrong pointer passing introduced in my own mncc modifications
diff --git a/openbsc/src/gsm_04_08.c b/openbsc/src/gsm_04_08.c
index 367f7fa..d5f12de 100644
--- a/openbsc/src/gsm_04_08.c
+++ b/openbsc/src/gsm_04_08.c
@@ -1865,7 +1865,7 @@
 {
 	struct gsm_mncc rel;
 
-	memset(&rel, 0, sizeof(&rel));
+	memset(&rel, 0, sizeof(rel));
 	rel.callref = callref;
 	mncc_set_cause(&rel, GSM48_CAUSE_LOC_PRN_S_LU,
 		       GSM48_CC_CAUSE_UNASSIGNED_NR);
@@ -3457,7 +3457,7 @@
 					bts->nr, data->called.number,
 					get_mncc_name(msg_type));
 				/* Trigger paging */
-				paging_request(bts, subscr, RSL_CHANNEED_TCH_F,
+				paging_request(net, subscr, RSL_CHANNEED_TCH_F,
 						setup_trig_pag_evt, subscr);
 			} while (1);
 			return 0;