qcacld-3.0: Update documenation of CFG_BTM_ENABLE

FW considers 9th bit of CFG_BTM_ENABLE for btm query
with candidate list which is not mentioned in ini
documentation.

Change-Id: I4fefdaa464e14c350d885107a28051fa0ad309f0
CRs-Fixed: 2839587

components/mlme/dispatcher/inc/cfg_mlme_btm.h

@@ -103,7 +103,9 @@
  *
  * BIT 8: BTM query preference over 11k neighbor report request
  *
- * BIT 9-31: Reserved
+ * BIT 9: BTM query with candidate list
+ *
+ * BIT 10-31: Reserved
  *
  * Supported Feature: STA
  *