Revert Widevine 6.0.0 -> 4.5.0 libraries

Includes Widevine libraries Version 4.5.0.7809

Also fixed samplePlayer's MediaCodec mode not running and
WVDrmInfoRequestStatusKey returning incorrect value.

Change-Id: I1d7df9cf3935d7fec143e326f142e974979cc69b
related-to-bug: 6929628
related-to-bug: 6833718
related-to-bug: 6889322
2 files changed