qcacld-3.0: Fix bad block comment in wlan_hdd_main.h

The checkpatch script has identified an instance of a non-conformant
block comment in wlan_hdd_main.h, so fix it.

Change-Id: Ie76156601021e2b5e503280337b38792217b7dbc
CRs-Fixed: 2197711

core/hdd/inc/wlan_hdd_main.h

@@ -1,4 +1,4 @@
- /*
+/*
  * Copyright (c) 2012-2018 The Linux Foundation. All rights reserved.
  *
  * Previously licensed under the ISC license by Qualcomm Atheros, Inc.