Add TEST_MAPPINGs for autofill in Activity path

Autofill broken tests (b/162203720) that weren't executed in the
presubmit. Add the fail tests into TEST_MAPPING to make sure tests
can be tested in presubmit.

Bug: 154961272
Test: atest --test-mapping frameworks/base/core/java/android/app/
Test: TreeHugger
Change-Id: Ifaefa6fae08d698b770e43830a62b3afb5b4edc5