Move to android.support.test as CTS instrumentation runner.

Also do the following related cleanup
- Remove references to deprecated BrokenTest and KnownFailure
- Switch CTS tests to build against SDK and not private
android.test.runner where possible

Bug: 12924356

Change-Id: If6151b836456eec4838f8d7d6e11c9834c007fca
202 files changed