ns2: Increment Rx and Tx byte / packet counters

Change-Id: If5e93f69cddbc8962cbbae38c07b504dd9b1ecd1
diff --git a/src/gb/gprs_ns2.c b/src/gb/gprs_ns2.c
index 6be16a2..d3c1e69 100644
--- a/src/gb/gprs_ns2.c
+++ b/src/gb/gprs_ns2.c
@@ -1053,6 +1053,9 @@
 	log_set_context(LOG_CTX_GB_NSE, nsvc->nse);
 	log_set_context(LOG_CTX_GB_NSVC, nsvc);
 
+	rate_ctr_inc(&nsvc->ctrg->ctr[NS_CTR_PKTS_IN]);
+	rate_ctr_add(&nsvc->ctrg->ctr[NS_CTR_BYTES_IN], msg->len);
+
 	if (msg->len < sizeof(struct gprs_ns_hdr))
 		return -EINVAL;