recovery: auto detect fstype for sdcard

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

Change-Id: I1331b5020e2650d207f19e857c33e2ab8279e587
Revert "Apply gamma curve to backlight"

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

Change-Id: I54c1743aea3c819d90421aca8bc7e63891f1d1b4
Revert "msm7x30: update ALS overlay for new liblights"

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

Change-Id: Ie425ae847ecc6bfd6e303661421e420e80f2439c
Add more auto brightness levels

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

Change-Id: Ibdbe5613dad951f2ad75559c172e82c9f1cd638a
Merge https://github.com/LegacyXperia/android_device_semc_msm7x30-common into jb-4.2