Mediaserver back to 32-bits

force mediaserver to 32-bits, 64-bit version failed wider testing.

Bug: 126502613
Bug: 16890215
Test: use camera app to record video
Test: android.media.cts.MediaPlayer2Test#testRecordedVideoPlayback0
Test: android.media.cts.MediaPlayerTest#testRecordedVideoPlayback0
(cherry picked from commit 3c9b0120)

Change-Id: Ib42b91d7b2a069f00b852f5f17ea3d5ab216c7ff