adjust keyguard camera layout to make buttons match

by trial and error adjusted the bottom margins of the controls to make
transition to real camera layout seamless on the HH and N4.

Bug: 11236276
Change-Id: I707a5b0b94ac466c07b19c84473e444250cecf28
diff --git a/res/layout-port/keyguard_widget.xml b/res/layout-port/keyguard_widget.xml
index 28b59c4..5e073f4 100644
--- a/res/layout-port/keyguard_widget.xml
+++ b/res/layout-port/keyguard_widget.xml
@@ -34,7 +34,7 @@
         android:layout_height="64dip"
         android:layout_toRightOf="@id/shutter"
         android:layout_alignParentBottom="true"
-        android:layout_marginBottom="6dip"
+        android:layout_marginBottom="9dip"
         android:layout_marginRight="-5dip" />
 
     <ImageView
@@ -42,7 +42,7 @@
         style="@style/SwitcherButton"
         android:layout_toLeftOf="@id/shutter"
         android:layout_alignParentBottom="true"
-        android:layout_marginBottom="2dip"
+        android:layout_marginBottom="3dip"
         android:scaleType="center"
         android:contentDescription="@string/accessibility_mode_picker"
         android:src="@drawable/ic_switch_camera" />
@@ -52,7 +52,7 @@
         style="@style/SwitcherButton"
         android:layout_toLeftOf="@id/shutter"
         android:layout_alignParentBottom="true"
-        android:layout_marginBottom="2dip"
+        android:layout_marginBottom="3dip"
         android:scaleType="center"
         android:contentDescription="@string/accessibility_mode_picker"
         android:src="@drawable/ic_switcher_menu_indicator" />