gprs_ns2: fix empty prefix in TLV Parse error

Those messages were printed without any prefix because
LOGPC was used. LOGPC means continue a log line.
This must happened while copying this part of code over
from ns1 where has been a LOGP in this function.

Related: OS#4792
Change-Id: I2672ea0e34d19ea6172cb3458b8ff98d9700b2d0
diff --git a/src/gb/gprs_ns2.c b/src/gb/gprs_ns2.c
index 7a15352..334989c 100644
--- a/src/gb/gprs_ns2.c
+++ b/src/gb/gprs_ns2.c
@@ -864,7 +864,7 @@
 		rc = ns2_tlv_parse(&tp, nsh->data+1,
 				   msgb_l2len(msg) - sizeof(*nsh)-1, 0, 0);
 		if (rc < 0) {
-			LOGPC(DLNS, LOGL_NOTICE, "Error during TLV Parse in %s\n", msgb_hexdump(msg));
+			LOGP(DLNS, LOGL_NOTICE, "Error during TLV Parse in %s\n", msgb_hexdump(msg));
 			return rc;
 		}
 		/* All sub-network service related message types */
@@ -878,7 +878,7 @@
 		rc = ns2_tlv_parse(&tp, nsh->data+5,
 				   msgb_l2len(msg) - sizeof(*nsh)-5, 0, 0);
 		if (rc < 0) {
-			LOGPC(DLNS, LOGL_NOTICE, "Error during TLV Parse in %s\n", msgb_hexdump(msg));
+			LOGP(DLNS, LOGL_NOTICE, "Error during TLV Parse in %s\n", msgb_hexdump(msg));
 			return rc;
 		}
 		tp.lv[NS_IE_NSEI].val = nsh->data+2;
@@ -893,7 +893,7 @@
 		rc = ns2_tlv_parse(&tp, nsh->data,
 				   msgb_l2len(msg) - sizeof(*nsh), 0, 0);
 		if (rc < 0) {
-			LOGPC(DLNS, LOGL_NOTICE, "Error during TLV Parse in %s\n", msgb_hexdump(msg));
+			LOGP(DLNS, LOGL_NOTICE, "Error during TLV Parse in %s\n", msgb_hexdump(msg));
 			return rc;
 		}
 		/* All sub-network service related message types */
@@ -907,7 +907,7 @@
 		rc = ns2_tlv_parse(&tp, nsh->data,
 				   msgb_l2len(msg) - sizeof(*nsh), 0, 0);
 		if (rc < 0) {
-			LOGPC(DLNS, LOGL_NOTICE, "Error during TLV Parse\n");
+			LOGP(DLNS, LOGL_NOTICE, "Error during TLV Parse\n");
 			if (nsh->pdu_type != NS_PDUT_STATUS)
 				ns2_tx_status(nsvc, NS_CAUSE_PROTO_ERR_UNSPEC, 0, msg);
 			return rc;