Updating AppWidgetServiceImplTest as per Mockito changes

Bug: 38251013
Test: adb shell am instrument -e class com.android.server.appwidget.AppWidgetServiceImplTest \
 -w com.android.frameworks.servicestests/android.support.test.runner.AndroidJUnitRunner

Change-Id: I847335e1c5f9b720b2eecbac1b89b95d9b695e47
1 file changed