qcacld-3.0: Add comment between cases in switch statement

Add fallthrough comment in pmo_register_wow_wakeup_events
as per linux checkpatch script. Fallthrough required to set
interface type and to set sta wow bitmask.

Change-Id: I6931371e9a2d4421354c19c12e552c75e50cb798
CRs-Fixed: 2233187

components/pmo/core/src/wlan_pmo_static_config.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2018 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -60,6 +60,7 @@ void pmo_register_wow_wakeup_events(struct wlan_objmgr_vdev *vdev)
 					PMO_WOW_MAX_EVENT_BM_LEN,
 					event_bitmap);
 		}
+	/* fallthrough */
 	case QDF_P2P_DEVICE_MODE:
 	case QDF_OCB_MODE:
 	case QDF_MONITOR_MODE: