Native Side of Binder Proxy Tracking by Uid

Enable Processes to track the number of Binder Proxies objects held for
each UID. Triggers callback when a count crosses a threshold, to handle
bad behaving apps.

Merged-In: I1efcc37148bc42cb7690d7eef8fa389433829564
Change-Id: I1efcc37148bc42cb7690d7eef8fa389433829564
Fixes: 63901963
Test: bit FrameworksCoreTests:android.os.BinderProxyCountingTest
(cherry picked from commit d296d0cd)