4.4.4_r1 -> 4.4.4_r2

Change-Id: I87be9ba59410a2bcc08cc277a40cc4ac0da48a7d
Cleanup CM stuff

Sync 16 by default

Removed:
- Readme
- CM Updater
- CM Wallpapers
- Lock Clock (cLock)
- Legacy Prebuilts
- Darwin Prebuilts
- vendor_cyngn
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