Fix shortcut backup CTS

There's a version of GMS-core that changes the current transport upon
BOOT_COMPLETED, so we need to select local transport explicitly.

Bug: 64203677
Test: cts-tradefed run cts-dev --skip-device-info --skip-preconditions --skip-system-status-check com.android.compatibility.common.tradefed.targetprep.NetworkConnectivityChecker -a armeabi-v7a -l INFO -m CtsShortcutHostTestCases
Change-Id: I7f8ef684864179d3c1ee3459559cff7c91e7d091
1 file changed