Benchmark: Add SDK Decoder

Test: adb shell am instrument -w -r -e class\
      'com.android.media.benchmark.tests.DecoderTest'\
      com.android.media.benchmark/androidx.test.runner.AndroidJUnitRunner

Bug: 140051680
Change-Id: Iba07810fa36a4ad378a7a91bfa8b1bca0f615108
6 files changed