Depend on correct target for the car support library.

The macro that was being depended on before has been deprecated.
Instead, applications can just depend on the android-support-car target
directly.

Bug: 77601495
Test: build UxRestrictionsApp and run it
Test: build EmbeddedKitchenSinkApp and run it
Change-Id: Ia185a1ab051ffaa97ce543c42b8a95fea417937a
2 files changed