Update shortcut backup&restore CTS for new behavior

Bug 62451035
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: I8d1e934e4417d270abae2d2165b1e5f6c5496cdd
32 files changed