Simplify panel animations with an eye to performance.

Things are faster, but we're not buttery-smooth yet.

Bug: 3322970
Change-Id: Ib63bdc2e807b039197a12d3ed3935653e6237ae0
diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index d824f30..d3d1750 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -12,6 +12,7 @@
     <application
         android:persistent="true"
         android:allowClearUserData="false"
+        android:hardwareAccelerated="true"
         android:label="@string/app_label"
         android:icon="@drawable/ic_launcher_settings">