anzu: some cleanup

* Added & fixed some comments to the source files
* Reorganized alphabetically proprietary files list
* recovery.fstab: convert tabs to spaces

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I140eb49e729a20fefce0701f0a96f40f8f851840
anzu: move Torch overlay to msm7x30-common

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I971dbe67255d39bc4ade9d678455c23c802fb905