bug:35329920
Tests: Verfied playback on Ryu with Play Movies in combination with
ag/1907708, ag/1909159
This reverts commit fbf3650370.
Change-Id: I4a35a329b24e4cd9efcff4fe84e9d8901c714d57
Previously the drm and crypto plugins were separate hals.
This implied a separation of implementation libraries which
causes problems for some drm schemes. The reorganization
combines the hals into a single interface under drm.
Tests: basic gtests passing
Change-Id: I5cde6ff9f60625a0219731c4dbfcaefbd9f27f88
related-to-bug: 32815560