[ Merge of http://go/wvgerrit/132983 and http://go/ag/15407954 ]
This allows OEMs to raise the priority of the widevine drm service to
help with decrypt performance for high resolution/frame rate content.
Changes in a future version should help reduce the need to raise the
priority.
Change suggested by Amlogic.
Bug: 194152960
Test: GtsMediaTestCases
Change-Id: I04f4258c6fc7391827573037ff8ae1a58922ce6d
b00728fc4e