Set app_icon_size back to 72dp for sw720dp

Change-Id: I3b6ffc1b77eaebadb914d32a3e3bea6410fc7dc4
diff --git a/res/values-sw720dp/dimens.xml b/res/values-sw720dp/dimens.xml
index 848c409..02b7ec7 100644
--- a/res/values-sw720dp/dimens.xml
+++ b/res/values-sw720dp/dimens.xml
@@ -15,6 +15,7 @@
 -->
 
 <resources>
+    <dimen name="app_icon_size">72dp</dimen>
 <!-- QSB -->
     <dimen name="toolbar_button_vertical_padding">12dip</dimen>
     <dimen name="toolbar_button_horizontal_padding">12dip</dimen>