wahoo: Add 0720x0480 performance for c2.android.hevc.encoder

Test: android.video.cts.VideoEncoderDecoderTest#testHevcGoog0Perf0720x0480
Bug: 160114249
Change-Id: Id345544f2153a72a15336822f7e39d8d94789d1d
diff --git a/media_codecs_performance.xml b/media_codecs_performance.xml
index 001cf02..edc1967 100644
--- a/media_codecs_performance.xml
+++ b/media_codecs_performance.xml
@@ -45,6 +45,7 @@
         </MediaCodec>
         <MediaCodec name="c2.android.hevc.encoder" type="video/hevc" update="true">
             <Limit name="measured-frame-rate-320x240" range="35-36" /> <!-- N=32 v93%=1.0 -->
+            <Limit name="measured-frame-rate-720x480" range="5-15" /> <!-- N=12 manual -->
         </MediaCodec>
         <MediaCodec name="OMX.qcom.video.encoder.mpeg4" type="video/mp4v-es" update="true">
             <Limit name="measured-frame-rate-176x144" range="200-206" /> <!-- N=32 v93%=1.0 -->