hlte: Add PowerHAL extension

 * Manage power for the touchscreen, touchkeys, and gpio-keys

Change-Id: I7e5a38f16c0b27815ea0ed6c730ced80dda4869f
hlte: Disable some unused audio features

Change-Id: I2ad24ec8439e2e03236e963fda436f7a40ecbcaa
hlte: [WIP] utilize TARGET_UNIFIED_DEVICE

TODO: make sure bootloader values correct for all devices
DONE: Handle ril libs.
PS8: Add VZW required properties.

Change-Id: If7eb32fd206b7a5bab143d3ac77b963d370deab9
Merge remote-tracking branch 'cm/cm-11.0' into ose