[FIX] note: `Use fancy note` was re-checked on update

Set security group as not updatable. To be able to not use fancy note

Closes #4178

addons/note/security/note_security.xml

 <?xml version="1.0" encoding="utf-8"?>
 <openerp>
-<data>
+<data noupdate="1">
 
     <record id="group_note_fancy" model="res.groups">
         <field name="name">Notes / Fancy mode</field>