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/parser_yin.h b/src/parser_yin.h
index 3302aa3..7ab6c86 100644
--- a/src/parser_yin.h
+++ b/src/parser_yin.h
@@ -177,7 +177,7 @@
  *
  * @return LY_ERR values.
  */
-LY_ERR yin_parse_extension_instance(struct lys_yin_parser_ctx *ctx, LYEXT_SUBSTMT subelem, LY_ARRAY_SIZE_TYPE subelem_index,
+LY_ERR yin_parse_extension_instance(struct lys_yin_parser_ctx *ctx, LYEXT_SUBSTMT subelem, LY_ARRAY_COUNT_TYPE subelem_index,
                                     struct lysp_ext_instance **exts);
 
 /**