Fix the broken tests on BatteryTipDialogFragmentTest

Test: make -j56 RunSettingsRoboTests ROBOTEST_FILTER="com.android.settings.fuelgauge.batterytip"
Bug: 222229402
Change-Id: I9a6a8b69a1ef5c64bf8ce8807f83bac09f29ba8d

tests/robotests/src/com/android/settings/fuelgauge/batterytip/BatteryTipDialogFragmentTest.java

@@ -242,9 +242,7 @@ public class BatteryTipDialogFragmentTest {
         ShadowAlertDialogCompat shadowDialog = ShadowAlertDialogCompat.shadowOf(dialog);
 
         assertThat(shadowDialog.getMessage()).isEqualTo(
-                "Your apps are using a normal amount of battery. If apps use too much battery, "
-                        + "your phone will suggest actions you can take.\n\nYou can always turn"
-                        + " on Battery Saver if you’re running low on battery.");
+                mContext.getText(R.string.battery_tip_dialog_summary_message));
     }
 
     @Test