src: use namespace prefix osmo_counter*

Summary of changes:

s/struct counter/struct osmo_counter/g
s/counter_inc/osmo_counter_inc/g
s/counter_get/osmo_counter_get/g
s/counter_reset/osmo_counter_reset/g
s/counter_alloc/osmo_counter_alloc/g
s/counter_free/osmo_counter_free
diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat.c b/openbsc/src/osmo-bsc_nat/bsc_nat.c
index f732488..5df4cd8 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_nat.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_nat.c
@@ -663,7 +663,7 @@
 		case SCCP_MSG_TYPE_IT:
 			con = patch_sccp_src_ref_to_bsc(msg, parsed, nat);
 			if (parsed->gsm_type == BSS_MAP_MSG_ASSIGMENT_RQST) {
-				counter_inc(nat->stats.sccp.calls);
+				osmo_counter_inc(nat->stats.sccp.calls);
 
 				if (con) {
 					struct rate_ctr_group *ctrg;
@@ -752,7 +752,7 @@
 
 static void msc_connection_connected(struct bsc_msc_connection *con)
 {
-	counter_inc(nat->stats.msc.reconn);
+	osmo_counter_inc(nat->stats.msc.reconn);
 }
 
 static void msc_send_reset(struct bsc_msc_connection *msc_con)
@@ -1211,7 +1211,7 @@
 	}
 
 	/* count the reconnect */
-	counter_inc(nat->stats.bsc.reconn);
+	osmo_counter_inc(nat->stats.bsc.reconn);
 
 	/*
 	 * if we are not connected to a msc... just close the socket
diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat_utils.c b/openbsc/src/osmo-bsc_nat/bsc_nat_utils.c
index 4f90cdf..8765f27 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_nat_utils.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_nat_utils.c
@@ -95,12 +95,12 @@
 	INIT_LLIST_HEAD(&nat->access_lists);
 	INIT_LLIST_HEAD(&nat->dests);
 
-	nat->stats.sccp.conn = counter_alloc("nat.sccp.conn");
-	nat->stats.sccp.calls = counter_alloc("nat.sccp.calls");
-	nat->stats.bsc.reconn = counter_alloc("nat.bsc.conn");
-	nat->stats.bsc.auth_fail = counter_alloc("nat.bsc.auth_fail");
-	nat->stats.msc.reconn = counter_alloc("nat.msc.conn");
-	nat->stats.ussd.reconn = counter_alloc("nat.ussd.conn");
+	nat->stats.sccp.conn = osmo_counter_alloc("nat.sccp.conn");
+	nat->stats.sccp.calls = osmo_counter_alloc("nat.sccp.calls");
+	nat->stats.bsc.reconn = osmo_counter_alloc("nat.bsc.conn");
+	nat->stats.bsc.auth_fail = osmo_counter_alloc("nat.bsc.auth_fail");
+	nat->stats.msc.reconn = osmo_counter_alloc("nat.msc.conn");
+	nat->stats.ussd.reconn = osmo_counter_alloc("nat.ussd.conn");
 	nat->auth_timeout = 2;
 	nat->ping_timeout = 20;
 	nat->pong_timeout = 5;
diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat_vty.c b/openbsc/src/osmo-bsc_nat/bsc_nat_vty.c
index b892d7a..a115fad 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_nat_vty.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_nat_vty.c
@@ -250,15 +250,15 @@
 {
 	vty_out(vty, "NAT statistics%s", VTY_NEWLINE);
 	vty_out(vty, " SCCP Connections %lu total, %lu calls%s",
-		counter_get(nat->stats.sccp.conn),
-		counter_get(nat->stats.sccp.calls), VTY_NEWLINE);
+		osmo_counter_get(nat->stats.sccp.conn),
+		osmo_counter_get(nat->stats.sccp.calls), VTY_NEWLINE);
 	vty_out(vty, " MSC Connections %lu%s",
-		counter_get(nat->stats.msc.reconn), VTY_NEWLINE);
+		osmo_counter_get(nat->stats.msc.reconn), VTY_NEWLINE);
 	vty_out(vty, " MSC Connected: %d%s",
 		nat->msc_con->is_connected, VTY_NEWLINE);
 	vty_out(vty, " BSC Connections %lu total, %lu auth failed.%s",
-		counter_get(nat->stats.bsc.reconn),
-		counter_get(nat->stats.bsc.auth_fail), VTY_NEWLINE);
+		osmo_counter_get(nat->stats.bsc.reconn),
+		osmo_counter_get(nat->stats.bsc.auth_fail), VTY_NEWLINE);
 }
 
 static void dump_stat_bsc(struct vty *vty, struct bsc_config *conf)
diff --git a/openbsc/src/osmo-bsc_nat/bsc_sccp.c b/openbsc/src/osmo-bsc_nat/bsc_sccp.c
index f7d868a..de6b421 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_sccp.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_sccp.c
@@ -129,7 +129,7 @@
 	bsc_mgcp_init(conn);
 	llist_add_tail(&conn->list_entry, &bsc->nat->sccp_connections);
 	rate_ctr_inc(&bsc->cfg->stats.ctrg->ctr[BCFG_CTR_SCCP_CONN]);
-	counter_inc(bsc->cfg->nat->stats.sccp.conn);
+	osmo_counter_inc(bsc->cfg->nat->stats.sccp.conn);
 
 	LOGP(DNAT, LOGL_DEBUG, "Created 0x%x <-> 0x%x mapping for con %p\n",
 	     sccp_src_ref_to_int(&conn->real_ref),
diff --git a/openbsc/src/osmo-bsc_nat/bsc_ussd.c b/openbsc/src/osmo-bsc_nat/bsc_ussd.c
index 69cb7a4..a6fcffc 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_ussd.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_ussd.c
@@ -209,7 +209,7 @@
 	}
 
 	nat = (struct bsc_nat *) bfd->data;
-	counter_inc(nat->stats.ussd.reconn);
+	osmo_counter_inc(nat->stats.ussd.reconn);
 
 	conn = bsc_nat_ussd_alloc(nat);
 	if (!conn) {