Omni: Prepare enviroment for build.
Legacify frameworks and update patches for omni.
Omni: Delete undefined overlays
Omni: Add Button Backlight patch
Omni: We use CM local vold, we need to create a patch for system/core and we've already applyed vold patches on local
Omni: Add HighEndGfx patch and enable it
C-ROM: Prepare enviroment for build it.