transcoding: Add tests for uncovered apis:
getSupportedHdrTypes()
getSupportedVideoMimeTypes()
getUnsupportedHdrTypes()
getUnsupportedVideoMimeTypes()

Bug: 169965769
Test: atest  CtsMediaTranscodingTestCases:MediaTranscodeManagerTest
Change-Id: Id0b4f6bbf5b556f2c76739f40081c8d31e834df2
2 files changed