Support PAGING-CS and PAGING-PS on on PTP-BVCI

Related: OS#2403
Change-Id: I5c52b5af740460c48bb3ba858243b1d20e624268
diff --git a/src/gprs_bssgp_pcu.cpp b/src/gprs_bssgp_pcu.cpp
index 955b8cd..f00fc94 100644
--- a/src/gprs_bssgp_pcu.cpp
+++ b/src/gprs_bssgp_pcu.cpp
@@ -265,8 +265,12 @@
 		LOGP(DBSSGP, LOGL_DEBUG, "Rx BSSGP BVCI=%d (PTP) %s\n",
 		     bvci, bssgp_pdu_str(pdu_type));
 		break;
-	case BSSGP_PDUT_PAGING_PS:
 	case BSSGP_PDUT_PAGING_CS:
+		gprs_bssgp_pcu_rx_paging_cs(msg, tp);
+		break;
+	case BSSGP_PDUT_PAGING_PS:
+		gprs_bssgp_pcu_rx_paging_ps(msg, tp);
+		break;
 	case BSSGP_PDUT_RA_CAPABILITY:
 	case BSSGP_PDUT_RA_CAPA_UPDATE_ACK:
 		LOGP(DBSSGP, LOGL_INFO, "Rx BSSGP BVCI=%d (PTP) PDU type %s not implemented\n",