Add WmTests to the automotive-tests package

Automotive team is unable to use device-tests package, and is using automotive-tests package
as a smaller replacement
This change only adds the test APK into this package if automotive-tests package is added
to the build target

Change-Id: I226fe814638a350714ad5411d31735f22df58405
Test: manual
Bug: 284663915
1 file changed