qcacld-3.0: Stop bus bandwidth compute timer during driver remove

If interface is not closed, Bus bandwidth compute timer is not
stopped during rmmod.
Stop bus bandwidth compute timer during driver remove

Change-Id: If9206f9dcfb6120394848715a6f31a810002d0c9
CRs-Fixed: 2355345

core/hdd/src/wlan_hdd_main.c

@@ -7292,6 +7292,7 @@ void hdd_wlan_exit(struct hdd_context *hdd_ctx)
 
 	hdd_wlan_stop_modules(hdd_ctx, false);
 
+	hdd_bus_bw_compute_timer_stop(hdd_ctx);
 	hdd_bus_bandwidth_deinit(hdd_ctx);
 	hdd_driver_memdump_deinit();