C2SoftGav1Dec: add support for parsing color aspects

Bug: 165787556

Test: atest -c CtsMediaV2TestCases:DecoderColorAspectTest
Test: atest VtsHalMediaC2V1_0TargetVideoDecTest

Change-Id: I7950ea0915723f38c2f771e30e4f8de66069a799
2 files changed