locking/lockdep: Mark __lockdep_count_forward_deps() as static

There are new Sparse warnings:

  >> kernel/locking/lockdep.c:1235:15: sparse: symbol '__lockdep_count_forward_deps' was not declared. Should it be static?
  >> kernel/locking/lockdep.c:1261:15: sparse: symbol '__lockdep_count_backward_deps' was not declared. Should it be static?

Please consider folding the attached diff :-)
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/527d1787.ThzXGoUspZWehFDl\%fengguang.wu@intel.comSigned-off-by: Ingo Molnar <mingo@kernel.org>

kernel/locking/lockdep.c

@@ -1232,7 +1232,7 @@ static int noop_count(struct lock_list *entry, void *data)
 	return 0;
 }
 
-unsigned long __lockdep_count_forward_deps(struct lock_list *this)
+static unsigned long __lockdep_count_forward_deps(struct lock_list *this)
 {
 	unsigned long  count = 0;
 	struct lock_list *uninitialized_var(target_entry);
@@ -1258,7 +1258,7 @@ unsigned long lockdep_count_forward_deps(struct lock_class *class)
 	return ret;
 }
 
-unsigned long __lockdep_count_backward_deps(struct lock_list *this)
+static unsigned long __lockdep_count_backward_deps(struct lock_list *this)
 {
 	unsigned long  count = 0;
 	struct lock_list *uninitialized_var(target_entry);