Device Changes:
- First A15 Stable Release
- Switched to AIDL thermal HAL
- Switched to AIDL USB HALs
- Switched to source built agm and pal
- Migrate sensor HAL to AIDL interface
- Build GNSS HAL from source
- Enabled Fuse Passthrough Android Property
- Removed eng props
- Dropped prebuilt nxp nfc interface
- Enabled libperfmgr and fixed some libperf nodes
- Added LCD features

ROM Changes:
- Latest DerpFest A15 source upstream
- November security patch
- DerpSpace getting new revamped design. So it will be added later.
- Many more customizations added back but it's not at one place. So find out.
- Adapted to derp new gms