lib: Fix LYD_NEW_PATH_OUTPUT issue to support libyang v3.x

Fix the LYD_NEW_PATH_OUTPUT undeclared error to support the latest libyang v3.x version,
and also compatible with old version.

Signed-off-by: Lu Mao <[email protected]>
(cherry picked from commit 87c9060)

lib/yang.c

@@ -25,6 +25,11 @@ DEFINE_MTYPE_STATIC(LIB, YANG_DATA, "YANG data structure");
 #define yang_lyd_find_xpath3(ctx_node, tree, xpath, format, prefix_data, vars, \
 			     set)                                              \
 	lyd_find_xpath3(ctx_node, tree, xpath, vars, set)
+
+#ifndef LYD_NEW_VAL_OUTPUT
+#define LYD_NEW_VAL_OUTPUT LYD_NEW_PATH_OUTPUT
+#endif
+
 #else
 #define yang_lyd_find_xpath3(ctx_node, tree, xpath, format, prefix_data, vars, \
 			     set)                                              \
@@ -671,7 +676,7 @@ void yang_dnode_rpc_output_add(struct lyd_node *output, const char *xpath,
 	LY_ERR err;
 
 	err = lyd_new_path(output, ly_native_ctx, xpath, value,
-			   LYD_NEW_PATH_OUTPUT | LYD_NEW_PATH_UPDATE, NULL);
+			   LYD_NEW_VAL_OUTPUT | LYD_NEW_PATH_UPDATE, NULL);
 	assert(err == LY_SUCCESS);
 }