beckham: overlay: Beautify rounded corners

* Adapted for Beckham.

Change-Id: Ifb3ff156eca7a02daec82138aee449b121c071eb
Signed-off-by: Joshua Blanchard <joshua.lee.bbg@gmail.com>

overlay/frameworks/base/core/res/res/values/dimens.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ * Copyright (c) 2006, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
+-->
+<resources>
+    <!-- Radius of the software rounded corners at the top of the display in its natural
+        orientation. If zero, the value of rounded_corner_radius is used. -->
+    <dimen name="rounded_corner_radius_top">15dp</dimen>
+
+    <!-- Radius of the software rounded corners at the bottom of the display in its natural
+        orientation. If zero, the value of rounded_corner_radius is used. -->
+    <dimen name="rounded_corner_radius_bottom">15dp</dimen>
+</resources>

overlay/frameworks/base/packages/SystemUI/res/values/dimens.xml

-<resources>
-    <dimen name="rounded_corner_radius">15dp</dimen>
-</resources>