libyang REFACTOR rename sized array size to count

... because it reflects the fact that it may not
always (internally) be the size of the array.
diff --git a/src/path.h b/src/path.h
index 3c2df75..a60fdc6 100644
--- a/src/path.h
+++ b/src/path.h
@@ -189,7 +189,7 @@
  * @return LY_SUCCESS when the last node in the path was found,
  * @return LY_ERR on another error.
  */
-LY_ERR ly_path_eval_partial(const struct ly_path *path, const struct lyd_node *start, LY_ARRAY_SIZE_TYPE *path_idx,
+LY_ERR ly_path_eval_partial(const struct ly_path *path, const struct lyd_node *start, LY_ARRAY_COUNT_TYPE *path_idx,
                             struct lyd_node **match);
 
 /**