Migrate to androidx.* dependencies.

Note, that the EmbeddedKitchenSinkApp has not been migrated because it
depends on car support library. The car support library target is not
yet ready to be migrated.

Also, clean up that app so that it no longer depends on
car-stream-ui-lib.

Test: build and flash
Bug: 77483560
Change-Id: I80f532b7ac2e328b22bf45f0dacc5d2b43a6cb6e
37 files changed