Add new show/hide anim duration for TV volume ui

Bug: 167732325
Test: m && flash && verify
Change-Id: I62f147ee48911b2daab79d75f1c2a8bd9e2e42b7
diff --git a/packages/SystemUI/res/values/config.xml b/packages/SystemUI/res/values/config.xml
index 446ed3e..d63724d 100644
--- a/packages/SystemUI/res/values/config.xml
+++ b/packages/SystemUI/res/values/config.xml
@@ -565,4 +565,10 @@
 
     <!-- Change the volume row tint when it is inactive, i.e. when it is being dismissed -->
     <bool name="config_changeVolumeRowTintWhenInactive">true</bool>
+
+    <!-- The duraction of the show animation for the volume dialog in milliseconds -->
+    <integer name="config_dialogShowAnimationDurationMs">300</integer>
+
+    <!-- The duraction of the hide animation for the volume dialog in milliseconds -->
+    <integer name="config_dialogHideAnimationDurationMs">250</integer>
 </resources>