DeviceParts: remove TouchKeys and Touchscreen sensitivity

They don't work on the new kernel driver
overlay: restore network mode setting manually

Our modem doesn't automatically restore network mode. It defaults to HSDPA on every boot
Merge branch 'cm-10.1' of git://github.com/dhiru1602/android_device_samsung_galaxysl into cm-10.1
Enabled the build of Hardware Composer.

Signed-off-by: David Rodero <david@codiguiel.net>