library/PCUIF_Types: fix padding attribute for PCUIF_Message

This fixes tons of warnings like this one:

  dec_PCUIF_Message(): Data remained at the end of the stream
                       after successful decoding: '00'O

Change-Id: If34da75c21b023222c44504d561cd6f658a401cf
Fixes: e0666ea5 "PCUIF: upgrade to PCUIF v12"
Related: OS#6191
diff --git a/library/PCUIF_Types.ttcn b/library/PCUIF_Types.ttcn
index 33b454f..5ed87b6 100644
--- a/library/PCUIF_Types.ttcn
+++ b/library/PCUIF_Types.ttcn
@@ -400,8 +400,8 @@
 				pag_req,	msg_type = PCU_IF_MSG_PAG_REQ;
 				app_info_req,	msg_type = PCU_IF_MSG_APP_INFO_REQ;
 				container,	msg_type = PCU_IF_MSG_CONTAINER)"
-	/* PCUIFv10: 1006 * 8 = 8048 bits */
-	variant "PADDING(8048)"
+	/* PCUIFv12: 1007 * 8 = 8056 bits */
+	variant "PADDING(8056)"
 };
 
 external function enc_PCUIF_Message(in PCUIF_Message pdu) return octetstring