src: use namespace prefix osmo_timer* for timer functions

Summary of changes:

s/struct timer_list/struct osmo_timer_list/g
s/bsc_add_timer/osmo_timer_add/g
s/bsc_schedule_timer/osmo_timer_schedule/g
s/bsc_del_timer/osmo_timer_del/g
s/bsc_timer_pending/osmo_timer_pending/g
s/bsc_nearest_timer/osmo_timers_nearest/g
s/bsc_prepare_timers/osmo_timers_prepare/g
s/bsc_update_timers/osmo_timers_update/g
s/bsc_timer_check/osmo_timers_check/g
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_msc.c b/openbsc/src/osmo-bsc/osmo_bsc_msc.c
index 66d18c8..e1a95a8 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_msc.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_msc.c
@@ -239,7 +239,7 @@
 		else if (msg->l2h[0] == IPAC_MSGT_ID_GET) {
 			send_id_get_response(data, bfd->fd);
 		} else if (msg->l2h[0] == IPAC_MSGT_PONG) {
-			bsc_del_timer(&data->pong_timer);
+			osmo_timer_del(&data->pong_timer);
 		}
 	} else if (hh->proto == IPAC_PROTO_SCCP) {
 		sccp_system_incoming(msg);
@@ -278,10 +278,10 @@
 	send_ping(data);
 
 	/* send another ping in 20 seconds */
-	bsc_schedule_timer(&data->ping_timer, data->ping_timeout, 0);
+	osmo_timer_schedule(&data->ping_timer, data->ping_timeout, 0);
 
 	/* also start a pong timer */
-	bsc_schedule_timer(&data->pong_timer, data->pong_timeout, 0);
+	osmo_timer_schedule(&data->pong_timer, data->pong_timeout, 0);
 }
 
 static void msc_pong_timeout_cb(void *_data)
@@ -321,8 +321,8 @@
 	LOGP(DMSC, LOGL_ERROR, "Lost MSC connection. Freing stuff.\n");
 
 	data = (struct osmo_msc_data *) msc->write_queue.bfd.data;
-	bsc_del_timer(&data->ping_timer);
-	bsc_del_timer(&data->pong_timer);
+	osmo_timer_del(&data->ping_timer);
+	osmo_timer_del(&data->pong_timer);
 
 	sig.data = data;
 	dispatch_signal(SS_MSC, S_MSC_LOST, &sig);
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_rf.c b/openbsc/src/osmo-bsc/osmo_bsc_rf.c
index 436474c..8df0306 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_rf.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_rf.c
@@ -160,7 +160,7 @@
 {
 	rf->grace_timeout.cb = grace_timeout;
 	rf->grace_timeout.data = rf;
-	bsc_schedule_timer(&rf->grace_timeout, rf->gsm_network->msc_data->mid_call_timeout, 0);
+	osmo_timer_schedule(&rf->grace_timeout, rf->gsm_network->msc_data->mid_call_timeout, 0);
 	LOGP(DINP, LOGL_NOTICE, "Going to switch RF off in %d seconds.\n",
 	     rf->gsm_network->msc_data->mid_call_timeout);
 
@@ -175,20 +175,20 @@
 	switch (rf->last_request) {
 	case RF_CMD_D_OFF:
 		rf->last_state_command = "RF Direct Off";
-		bsc_del_timer(&rf->rf_check);
-		bsc_del_timer(&rf->grace_timeout);
+		osmo_timer_del(&rf->rf_check);
+		osmo_timer_del(&rf->grace_timeout);
 		switch_rf_off(rf);
 		break;
 	case RF_CMD_ON:
 		rf->last_state_command = "RF Direct On";
-		bsc_del_timer(&rf->grace_timeout);
+		osmo_timer_del(&rf->grace_timeout);
 		lock_each_trx(rf->gsm_network, 0);
 		send_signal(rf, S_RF_ON);
-		bsc_schedule_timer(&rf->rf_check, 3, 0);
+		osmo_timer_schedule(&rf->rf_check, 3, 0);
 		break;
 	case RF_CMD_OFF:
 		rf->last_state_command = "RF Scheduled Off";
-		bsc_del_timer(&rf->rf_check);
+		osmo_timer_del(&rf->rf_check);
 		enter_grace(rf);
 		break;
 	}
@@ -218,8 +218,8 @@
 	case RF_CMD_ON:
 	case RF_CMD_OFF:
 		conn->rf->last_request = buf[0];
-		if (!bsc_timer_pending(&conn->rf->delay_cmd))
-			bsc_schedule_timer(&conn->rf->delay_cmd, 1, 0);
+		if (!osmo_timer_pending(&conn->rf->delay_cmd))
+			osmo_timer_schedule(&conn->rf->delay_cmd, 1, 0);
 		break;
 	default:
 		conn->rf->last_state_command = "Unknown command";
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_sccp.c b/openbsc/src/osmo-bsc/osmo_bsc_sccp.c
index 718f305..099552b 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_sccp.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_sccp.c
@@ -95,8 +95,8 @@
 		LOGP(DMSC, LOGL_DEBUG, "Connection established: %p\n", conn);
 		con_data = (struct osmo_bsc_sccp_con *) conn->data_ctx;
 
-		bsc_del_timer(&con_data->sccp_cc_timeout);
-		bsc_schedule_timer(&con_data->sccp_it_timeout, SCCP_IT_TIMER, 0);
+		osmo_timer_del(&con_data->sccp_cc_timeout);
+		osmo_timer_schedule(&con_data->sccp_it_timeout, SCCP_IT_TIMER, 0);
 
 		send_queued(con_data);
 	}
@@ -122,7 +122,7 @@
 		(struct osmo_bsc_sccp_con *) _data;
 
 	sccp_connection_send_it(data->sccp);
-	bsc_schedule_timer(&data->sccp_it_timeout, SCCP_IT_TIMER, 0);
+	osmo_timer_schedule(&data->sccp_it_timeout, SCCP_IT_TIMER, 0);
 }
 
 static void sccp_cc_timeout(void *_data)
@@ -231,7 +231,7 @@
 
 int bsc_open_connection(struct osmo_bsc_sccp_con *conn, struct msgb *msg)
 {
-	bsc_schedule_timer(&conn->sccp_cc_timeout, 10, 0);
+	osmo_timer_schedule(&conn->sccp_cc_timeout, 10, 0);
 	sccp_connection_connect(conn->sccp, &sccp_ssn_bssap, msg);
 	msgb_free(msg);
 	return 0;
@@ -246,8 +246,8 @@
 		LOGP(DMSC, LOGL_ERROR, "Should have been cleared.\n");
 
 	llist_del(&sccp->entry);
-	bsc_del_timer(&sccp->sccp_it_timeout);
-	bsc_del_timer(&sccp->sccp_cc_timeout);
+	osmo_timer_del(&sccp->sccp_it_timeout);
+	osmo_timer_del(&sccp->sccp_cc_timeout);
 	talloc_free(sccp);
 	return 0;
 }