Add margins to overflow menu button in Dialpad

Bug: 15988764
Change-Id: Ic1460540772441a9f8004de890de229067f6b749
diff --git a/res/layout/dialpad_view.xml b/res/layout/dialpad_view.xml
index e84aa2a..c7413b0 100644
--- a/res/layout/dialpad_view.xml
+++ b/res/layout/dialpad_view.xml
@@ -38,6 +38,7 @@
             android:tint="@color/dialpad_icon_tint"
             android:layout_width="wrap_content"
             android:layout_height="match_parent"
+            android:layout_margin="@dimen/dialpad_overflow_margin"
             android:paddingLeft="@dimen/dialpad_digits_padding"
             android:paddingRight="@dimen/dialpad_digits_menu_right_padding"
             android:contentDescription="@string/description_dialpad_overflow"