Add TEST_MAPPING and dummy tests to com.android.server.policy.

Bug: 113800711
Bug: 111302567
Test: tradefed.sh run commandAndExit WmTests \
    --include-filter com.android.server.policy. \
    --include-annotation android.platform.test.annotations.Presubmit \
    --exclude-annotation androidx.test.filters.FlakyTest

Change-Id: I723c9da0c7c5284b3ab57cfd096f4a8428c17305
2 files changed