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
5 files changed