Fix and refine Recent Media Card Tests and enable it.

On Cuttlefish, the Recent Media Card (RMC) may not be fully visible on the Quick Setting (QS) as shown at the
link below.
https://hsv.googleplex.com/5935087116877824
Therefore, the test script should scroll down until the RMC is fully visible.

Test: https://android-build.googleplex.com/builds/abtd/run/L58900000961045266
Bug: 261619225
Bug: 273739913
Change-Id: Ia3b97d86763fcafe272dee0b3abd9553496d3a59
1 file changed