CLEANUP: Fix a typo in the mini-clist header

Fixes a typo in the code comments of the mini-clist header.
diff --git a/include/common/mini-clist.h b/include/common/mini-clist.h
index 2988d2c..3a6d8dd 100644
--- a/include/common/mini-clist.h
+++ b/include/common/mini-clist.h
@@ -107,7 +107,7 @@
 #define LIST_NEXT(lh, pt, el) (LIST_ELEM((lh)->n, pt, el))
 
 
-/* returns a pointer of type <pt> to a structure preceeding the element
+/* returns a pointer of type <pt> to a structure preceding the element
  * which contains list head <lh>, which is known as element <el> in
  * struct pt.
  */