mediav2 CTS: Refactor Codec Decoder Extn Test

The test accepts multiple input files (multiple container formats but
underlying elementary stream is same), decodes them and compares the
output against each other. The validation is now extended by adding
rmserror and CRC validation wherever applicable.

Bug: 180571072
Test: atest android.mediav2.cts.CodecDecoderValidationTest

Change-Id: I9edc2d64b3472009d4bcd86fb9b16d2f7e6f74d3
4 files changed