In case there is a bug after rolling out transport
types support in the NetworkIdentity. Add a kill switch
to stop writing transport types to mitigate the
impact if any.
Flag: EXEMPT the change is the kill switch
Test: atest ConnectivityCoverageTests --test-filter \
'NetworkIdentity*' --update-device
Test: atest ConnectivityCoverageTests --test-filter \
'NetworkStats*' --update-device
Test: atest ConnectivityBenchmarkTests
Test: atest FrameworksNetIntegrationTests:com.android.server.net.integrationtests.NetworkStatsIntegrationTest
Test: Manual:
1. Download files
2. adb shell device_config put tethering store_transport_types -1
3. reboot and check Data Usage Settings page.
Bug: 419123367
Change-Id: I52791f6fe5207021748641cf0719055533b5d511
1c5f5b5270