Add packages/apps/Car/Notification to default manifest

Bug: 109938698
Test: repo sync the project

default.xml

@@ -475,6 +475,7 @@
   <project path="packages/apps/Car/LocalMediaPlayer" name="platform/packages/apps/Car/LocalMediaPlayer" groups="pdk-fs" />
   <project path="packages/apps/Car/Media" name="platform/packages/apps/Car/Media" groups="pdk-fs" />
   <project path="packages/apps/Car/Messenger" name="platform/packages/apps/Car/Messenger" groups="pdk-fs" />
+  <project path="packages/apps/Car/Notification" name="platform/packages/apps/Car/Notification" groups="pdk-fs" />
   <project path="packages/apps/Car/Overview" name="platform/packages/apps/Car/Overview" groups="pdk-fs" />
   <project path="packages/apps/Car/Radio" name="platform/packages/apps/Car/Radio" groups="pdk-fs" />
   <project path="packages/apps/Car/Settings" name="platform/packages/apps/Car/Settings" groups="pdk-fs" />