cts: fix testSwAVCDecode360pForFlexibleYuv.

Bug: 17144778
Change-Id: Ibf52b4979739a1d3569b4ab5c5ad9c68005acd89
diff --git a/tests/expectations/knownfailures.txt b/tests/expectations/knownfailures.txt
index 56cb7c3..4c0d9a5 100644
--- a/tests/expectations/knownfailures.txt
+++ b/tests/expectations/knownfailures.txt
@@ -286,5 +286,12 @@
     "android.hardware.cts.SensorTest#testBatchAndFlushWithHandler"
   ],
   bug: 17675466
+},
+{
+  description: "This test failed on hw decoder that doesn't output frame with the configured format.",
+  names: [
+    "android.meida.cts.ImageReaderDecoderTest#testHwAVCDecode360pForFlexibleYuv"
+  ],
+  bug: 17144778
 }
 ]