d710: update and cleanup files for cm-10.1

-remove unneeded files
-add bluetooth identifier
-update GPS conf
-update ramdisk
-update Device Settings
-update and remove duplicate overlays
-add device assert for Virgin Mobile and Boost Mobile
-add ext4 as second filesystem for sdcard for recovery
-fix vold encryption support
-update extract script
-add smdk4210 kernel to dependencies
-use roboto font in recovery
-update to latest OTA fingerprint
Add menu and home key functionality to recovery