Apply animation for Media Ouput Switcher dialog

-Inherit InputMethod animation and create MediaOutputDialog animation

Bug: 155822415
Test: manual test
Merged-In: I42506f065da687c4ba6ddadca0f3b7a1c55f1be7
Change-Id: I42506f065da687c4ba6ddadca0f3b7a1c55f1be7

packages/SystemUI/res/values/styles.xml

@@ -320,6 +320,9 @@
     <style name="Animation.ShutdownUi" parent="@android:style/Animation.Toast">
     </style>
 
+    <style name="Animation.MediaOutputDialog" parent="@android:style/Animation.InputMethod">
+    </style>
+
     <!-- Standard animations for hiding and showing the status bar. -->
     <style name="Animation.StatusBar">
     </style>