Use cross fade rotation animation

  Bug: 8257846

Change-Id: I891eda12f3de2ec0cd0f7672b991a19e6464873c
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index cb38007..f7734bb 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -88,4 +88,5 @@
     <dimen name="face_circle_stroke">2dip</dimen>
     <dimen name="zoom_font_size">14pt</dimen>
     <dimen name="shutter_offset">-22dp</dimen>
+    <dimen name="margin_systemui_offset">6dip</dimen>
 </resources>