Merge branch 'feature/add_broadcast_and_multicast_support_for_smartconfig_v2.0' into 'release/v2.x.x'

feat(smartconfig): add broadcast and multicast support for smartconfig v2.0

See merge request sdk/ESP8266_RTOS_SDK!515

Author: donghengqaz

VERSION

@@ -5,7 +5,7 @@ gwen:
     net80211:   4833de1
     pp:         1155a0b
     pwm:        9ec59b5
-    smartconfig:7819fbf
+    smartconfig:34fb655
     wpa:        a8b0acd
     wps:        ff84a8b
     phy:        1055_8