Configure notifications to show on bottom

HUNs appear on bottom and notification center opens from bottom

Bug: 187551138
Test: manual on gcar_ui_portrait
Change-Id: Ie5342fc8e10b01355a355d36f0249572ac789db8
diff --git a/car_product/car_ui_portrait/apps/CarUiPortraitSystemUI/res/values/config.xml b/car_product/car_ui_portrait/apps/CarUiPortraitSystemUI/res/values/config.xml
index c649630..72d4b27 100644
--- a/car_product/car_ui_portrait/apps/CarUiPortraitSystemUI/res/values/config.xml
+++ b/car_product/car_ui_portrait/apps/CarUiPortraitSystemUI/res/values/config.xml
@@ -29,4 +29,14 @@
         <item>com.android.systemui.car.userswitcher.UserSwitchTransitionViewMediator</item>
         <item>com.android.systemui.car.rvc.ExtendedRearViewCameraViewMediator</item>
     </string-array>
+
+    <!-- Show heads-up notifications on the bottom -->
+    <bool name="config_showHeadsUpNotificationOnBottom">true</bool>
+
+    <string name="config_notificationPanelViewMediator" translatable="false">
+        com.android.systemui.car.notification.BottomNotificationPanelViewMediator</string>
+
+    <!-- Animation helper for animating heads-up notification showing on screen and leaving the screen from the bottom -->
+    <string name="config_headsUpNotificationAnimationHelper" translatable="false">
+        com.android.car.notification.headsup.animationhelper.CarHeadsUpNotificationBottomAnimationHelper</string>
 </resources>