Fix FlakyTest filter in wm/TEST_MAPPING

This is a follow up of I2d9641c68148

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

Change-Id: I7fa4d2cb70594431574d44d886352a2e81d8e51e