Mark gprs_ns_reconnect() as static (not used outside of C file)

Change-Id: I95138adedacdc2d953284cff57f79ecb33616f0f
diff --git a/src/gprs_bssgp_pcu.cpp b/src/gprs_bssgp_pcu.cpp
index 100e33d..8bf6b7f 100644
--- a/src/gprs_bssgp_pcu.cpp
+++ b/src/gprs_bssgp_pcu.cpp
@@ -47,6 +47,7 @@
 extern bool spoof_mnc_3_digits;
 
 static void bvc_timeout(void *_priv);
+static int gprs_ns_reconnect(struct gprs_nsvc *nsvc);
 
 static int parse_imsi(struct tlv_parsed *tp, char *imsi)
 {
@@ -857,7 +858,7 @@
 	osmo_timer_schedule(&the_pcu.bvc_timer, the_pcu.bts->fc_interval, 0);
 }
 
-int gprs_ns_reconnect(struct gprs_nsvc *nsvc)
+static int gprs_ns_reconnect(struct gprs_nsvc *nsvc)
 {
 	struct gprs_nsvc *nsvc2;
 
diff --git a/src/gprs_bssgp_pcu.h b/src/gprs_bssgp_pcu.h
index 4127244..e8ae1a9 100644
--- a/src/gprs_bssgp_pcu.h
+++ b/src/gprs_bssgp_pcu.h
@@ -81,7 +81,6 @@
 		uint16_t lac, uint16_t rac, uint16_t cell_id);
 
 void gprs_bssgp_destroy(void);
-int gprs_ns_reconnect(struct gprs_nsvc *nsvc);
 
 struct bssgp_bvc_ctx *gprs_bssgp_pcu_current_bctx(void);