Set appropriate margin to dividers in SetupWizard

Bug: 3346105
Change-Id: I4a8367d54d2c62257618ad9e8415bcd1c3419802
diff --git a/res/layout-xlarge/date_time_settings_setupwizard.xml b/res/layout-xlarge/date_time_settings_setupwizard.xml
index 73aba01..328a014 100644
--- a/res/layout-xlarge/date_time_settings_setupwizard.xml
+++ b/res/layout-xlarge/date_time_settings_setupwizard.xml
@@ -43,6 +43,8 @@
         android:layout_width="match_parent"
         android:layout_height="3dip"
         android:layout_below="@id/title"
+        android:layout_marginTop="6dip"
+        android:layout_marginBottom="7dip"
         android:background="@color/divider_color" />
 
     <!-- timezone -->