Update try_to_find_reusable_mc function name

tools/dev/valgrind/starpu.suppr

@@ -150,6 +150,15 @@
 }
 
 {
+   mc / handle locking order2
+   Helgrind:LockOrder
+   ...
+   fun:__starpu_spin_lock
+   fun:try_to_find_reusable_mc
+   ...
+}
+
+{
    mc / handle locking order3
    Helgrind:LockOrder
    ...