coccinelle: bugon: reduce rule applicability

Rule r is only use in org or report mode, so only execute it in those
cases.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NMichal Marek <mmarek@suse.com>

scripts/coccinelle/misc/bugon.cocci

@@ -40,7 +40,7 @@ expression e;
 //  For org and report mode
 //----------------------------------------------------------
 
-@r@
+@r depends on (org || report)@
 expression e;
 position p;
 @@