Add test config to RetailDemoTests

Details about test configs changes are tracked in doc
https://docs.google.com/document/d/1EWUjJ7fjy8ge_Nk0YQbFdRp8DSHo3z6GU0R8jLgrAcw/edit#

Bug: 35882476
Test: local test

Change-Id: I36d3c90ca1fce72104c3ced12496c35c30002713
1 file changed
tree: f3bab5924a292fa6083ad44b5bb08426291b1460
  1. Android.mk
  2. AndroidManifest.xml
  3. res/
  4. src/
  5. tests/