drivers/base: cacheinfo: fix annoying typo when DT nodes are absent

s/hierarcy/hierarchy/

Maybe the typo will annoy people enough so that they add the missing
nodes to their device-tree files, but I still think this is better off
fixed.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c
index 9c2ba1c..c75bda8 100644
--- a/drivers/base/cacheinfo.c
+++ b/drivers/base/cacheinfo.c
@@ -191,12 +191,12 @@
 	if (ret)
 		goto free_ci;
 	/*
-	 * For systems using DT for cache hierarcy, of_node and shared_cpu_map
+	 * For systems using DT for cache hierarchy, of_node and shared_cpu_map
 	 * will be set up here only if they are not populated already
 	 */
 	ret = cache_shared_cpu_map_setup(cpu);
 	if (ret) {
-		pr_warn("Unable to detect cache hierarcy from DT for CPU %d\n",
+		pr_warn("Unable to detect cache hierarchy from DT for CPU %d\n",
 			cpu);
 		goto free_ci;
 	}