Fix two broken tests in PersistentKeyChainSnapshotTest

Bug: 73609806
Test: adb shell am instrument -w -e package \
com.android.server.locksettings.recoverablekeystore \
com.android.frameworks.servicestests/android.support.test.runner.AndroidJUnitRunner

Change-Id: I6c054fe8069c2016f8952380c0e083c6eb2b6a23
1 file changed