Manifest clean-up

- 5.0.2 merged.
- track own repos of
  - external/google
  - packages/apps/Dialer
  - packages/apps/LockClock
  - packages/apps/InCallUI
  - packages/services/telephony
  - packages/providers/DownloadProvider
- other minor clean-up

Signed-off-by: Chintan Shah <cgintan1998@gmail.com>