Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index b8581c0..76427e6 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -236,7 +236,7 @@
 	/* unpin an object in the cache */
 	void (*unpin_object)(struct fscache_object *object);
 
-	/* store the updated auxilliary data on an object */
+	/* store the updated auxiliary data on an object */
 	void (*update_object)(struct fscache_object *object);
 
 	/* discard the resources pinned by an object and effect retirement if