Staging: lustre: obdclass: Declare function as static

Declare the function cache_stats_print as static since it is used
only  in this file. Used grep to find occurences. Problem found using
sparse.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/obdclass/cl_object.c

@@ -362,7 +362,8 @@ void cache_stats_init(struct cache_stats *cs, const char *name)
 		atomic_set(&cs->cs_stats[i], 0);
 }
 
-int cache_stats_print(const struct cache_stats *cs, struct seq_file *m, int h)
+static int cache_stats_print(const struct cache_stats *cs,
+			     struct seq_file *m, int h)
 {
 	int i;
 	/*