msm8974: Add debug logging services

 * Disabled by default, just adding for convenience when
   needed for debugging.

Change-Id: I56ac0247eb6520efcaa60eb8873049b0e18a5161
msm8974: Misc startup changes

 * Syncing with QC
 * Fixes various issues during CTS

Change-Id: Id1c4a6ab700993d51586bcc49d99a8e5400f91fb