Add DecoderRenderTest to tv-postsubmit

Bug: 336350963
Test: atest DecoderRenderTest across a variety of TV devices
Change-Id: Id893414f7d4b7b28ab18c06a88429185e855ec66
diff --git a/media/OWNERS b/media/OWNERS
index 976fb9e..b926075 100644
--- a/media/OWNERS
+++ b/media/OWNERS
@@ -14,5 +14,8 @@
 taklee@google.com
 wonsik@google.com
 
+# For TEST_MAPPING tv-presubmit and tv-postsubmit configurations:
+per-file TEST_MAPPING = blindahl@google.com
+
 # go/android-fwk-media-solutions for info on areas of ownership.
 include platform/frameworks/av:/media/janitors/media_solutions_OWNERS
diff --git a/media/TEST_MAPPING b/media/TEST_MAPPING
index cd5d354..d388596 100644
--- a/media/TEST_MAPPING
+++ b/media/TEST_MAPPING
@@ -44,5 +44,11 @@
             ],
             "file_patterns": ["(?i)drm|crypto"]
         }
+    ],
+    // Postsubmit tests for TV devices
+    "tv-postsubmit": [
+       {
+           "name": "DecoderRenderTest"
+       }
     ]
 }