Make a resource available for accessing from PaintboothOverlay

Test: manually
Change-Id: If3ab0d22b3fc3bffe93818a6472ee85c5e198680
diff --git a/car-ui-lib/tests/paintbooth/Android.bp b/car-ui-lib/tests/paintbooth/Android.bp
index 5a8ed43..f5eb2da 100644
--- a/car-ui-lib/tests/paintbooth/Android.bp
+++ b/car-ui-lib/tests/paintbooth/Android.bp
@@ -47,4 +47,5 @@
             enabled: false,
         },
     },
+    export_package_resources: true,
 }