qcacld-3.0: Add missing CFG INI comment text - wave 2

1) Some CFG INI options' comment text are missing.
   Add them so automation script can parse and retrieve the
   correct comment text.
2) Fix some discrepancies in existing CFG INI comments.
3) Delete some INI items that are not used any more.

Change-Id: Ia2fc4fab70f78e99d14fd1f7f2b4248e6484ee32
CRs-Fixed: 2350612

components/mlme/dispatcher/inc/cfg_mlme_generic.h

@@ -184,7 +184,7 @@
  * @Max: 1
  * @Default: 1
  *
- *
+ * This option enables/disables memory deep sleep.
  * Related: None
  *
  * Supported Feature: General

components/mlme/dispatcher/inc/cfg_mlme_vht_caps.h

@@ -391,11 +391,12 @@
 
 /*
  * <ini>
- * gEnablePAID - Enables VHT paid feature
+ * gEnablePAID - VHT partial AID feature
  * @Min: 0
  * @Max: 1
  * @Default: 0
  *
+ * This option enables/disables VHT partial AID feature.
  * Related: NA
  *
  * Supported Feature: 11AC
@@ -411,11 +412,12 @@
 
 /*
  * <ini>
- * gEnableGID - Enables VHT gid feature
+ * gEnableGID - VHT Group ID feature
  * @Min: 0
  * @Max: 1
  * @Default: 0
  *
+ * This option enables/disables VHT Group ID feature.
  * Related: NA
  *
  * Supported Feature: 11AC