Increase the value of the UserRole for the ItemDataRole enum.

For future proofing. No need for it to be so small.

Change-Id: I8a0c734f87671881f114922ada7c5bc9524de19b
Reviewed-by: Marius Bugge Monsen <marius@cutehacks.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/corelib/global/qnamespace.h

@@ -1383,7 +1383,7 @@ public:
         StatusTipPropertyRole = 30,
         WhatsThisPropertyRole = 31,
         // Reserved
-        UserRole = 32
+        UserRole = 0x0100
     };
 
     enum ItemFlag {