Includes Widevine libraries Version 4.5.0.7809
Also fixed samplePlayer's MediaCodec mode not running and
WVDrmInfoRequestStatusKey returning incorrect value.
Change-Id: Ibcc6d313790670a908ada93be80d6bf55a67b4ed
related-to-bug: 6929628
related-to-bug: 6833718
related-to-bug: 6889322
It is now built under vendor/device/.../liboemcrypto/ because of dependencies on liboemcrypto.a,
which cannot be linked by platform-independant code.
Bug 5254175
Change-Id: I2fd5c55c4c0c94cebbca2a51ecd94940096930a1