library/GSM_RR_Types: Paging Request Type 1 may contain second MI

Change-Id: I1c443a875d048f51fcf8c5ea4d2a5ab8114d0a4f
diff --git a/library/GSM_RR_Types.ttcn b/library/GSM_RR_Types.ttcn
index 878166b..9d71f80 100644
--- a/library/GSM_RR_Types.ttcn
+++ b/library/GSM_RR_Types.ttcn
@@ -989,7 +989,8 @@
 		}
 	};
 
-	template GsmRrMessage tr_PAG_REQ1(template MobileIdentityLV mi1 := ?) := {
+	template GsmRrMessage tr_PAG_REQ1(template MobileIdentityLV mi1 := ?,
+					  template MobileIdentityTLV mi2 := omit) := {
 		header := t_RrHeader(PAGING_REQUEST_TYPE_1, ?),
 		payload := {
 			pag_req_1 := {
@@ -999,7 +1000,7 @@
 				},
 				page_mode := PAGE_MODE_NORMAL,
 				mi1 := mi1,
-				mi2 := omit,
+				mi2 := mi2,
 				rest_octets := ?
 			}
 		}