Merge branch 'bugfix/enable_ipv6_if_nan_v5.3' into 'release/v5.3'

bugfix(wifi): Enable IPv6 support via LWIP_IPV6 when WiFi Aware(NAN) is enabled (Backport v5.3)

See merge request espressif/esp-idf!40489

components/esp_wifi/Kconfig

@@ -483,6 +483,7 @@ menu "Wi-Fi"
             bool "WiFi Aware"
             default n
             depends on SOC_WIFI_NAN_SUPPORT
+            select LWIP_IPV6
             help
                 Enable WiFi Aware (NAN) feature.
 

examples/wifi/wifi_aware/nan_subscriber/main/subscriber_main.c

@@ -31,6 +31,9 @@
 #else
 #define EXAMPLE_NAN_SVC_MSG             "Hello"
 #endif
+#ifndef ETH_ALEN
+#define ETH_ALEN 6
+#endif
 
 static const char *TAG = "subscriber";