qcacld-3.0: Update the description of ini btm_config_offload

The bit 5, 4, 3 are used differently in case of solicited and
unsolicited btm request. Update the description of the ini
param to provide clarity on the usage of these bits.

Change-Id: Ic9a596710da6b4692d578206bbd783f784a230fb
CRs-Fixed: 2787597

components/mlme/dispatcher/inc/cfg_mlme_btm.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012-2019 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2012-2020 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
@@ -89,9 +89,12 @@
  * 10, 11 reserved
  *
  * BIT 5, 4, 3: Roaming handoff decisions on multiple candidates match
+ * for unsolicited BTM request.
  * 000 match if exact BSSIDs are found
  * 001 match if at least one top priority BSSID only
  * 010, 011, 100, 101, 110, 111 reserved
+ * In case of solicited request intersection of Roam cache/candidates
+ * with candidates in BTM request is taken into consideration.
  *
  * BIT 6: Set this to 1 will send BTM query frame and 0 not sent.
  *