conf_files: kona: tune perf xml for c2 H263

Fine tuned performance xml bsed on results
for above codec.

Change-Id: Ia851b144506a220564e79b85aefa28c799d56002
diff --git a/conf_files/kona/media_codecs_performance.xml b/conf_files/kona/media_codecs_performance.xml
index 455f0ce..e2780b9 100644
--- a/conf_files/kona/media_codecs_performance.xml
+++ b/conf_files/kona/media_codecs_performance.xml
@@ -190,7 +190,7 @@
             <Limit name="measured-frame-rate-1280x720" range="300-600" />
         </MediaCodec>
         <MediaCodec name="c2.android.h263.decoder" type="video/3gpp" update="true">
-            <Limit name="measured-frame-rate-176x144" range="650-770" />
+            <Limit name="measured-frame-rate-176x144" range="2195-2270" />
             <Limit name="measured-frame-rate-352x288" range="653-1526" />
         </MediaCodec>
         <MediaCodec name="c2.android.vp9.decoder" type="video/x-vnd.on2.vp9" update="true">