WIFI: Iperf example's parameter opt was uninitialized, may leads setsockoption invalide if it equal to 0
WIFI: Iperf example's parameter opt was uninitialized, may leads setsockoption invalide if it equal to 0

espressif/esp-idf,espressif/esp-idf,espressif/esp-idf,espressif/esp-idf