Merge branch 'optimization/TCPv6_connect_for_v4.0' into 'release/v4.0'

lw-ip:optimization TCPv6 connect for v4.0

See merge request espressif/esp-idf!8021

components/lwip/lwip

@@ -1 +1 @@
-Subproject commit dd3b301750f19c9f15248ac32d366cd41c6b3225
+Subproject commit 5c181728c894d8c051070b1cf21c55a6222fc64b

components/lwip/port/esp32/netif/wlanif.c

@@ -93,6 +93,12 @@ low_level_init(struct netif *netif)
 #endif
 #endif
 
+#if ESP_IPV6
+#if LWIP_IPV6 && LWIP_IPV6_MLD
+  netif->flags |= NETIF_FLAG_MLD6;
+#endif
+#endif
+
 #if !ESP_L2_TO_L3_COPY
   netif->l2_buffer_free_notify = wlanif_free_rx_buf_l2;
 #endif