MediaPlayerTest local video fixes.

Includes regenerated 480x360 content with correct aspect ratio set. Regenerated 176x144 files
seem to be identical to the manually tweaked ones that had already been submitted.

Also fixes a typo that was omitting a test (two tests referred to the same video resource.

Bug: 5231649
Change-Id: I3228be4392ce2f013e3d3c6cebe16f81b4211c5c