[Bugfix]Update netdev info after registered 
[Bugfix]Update netdev info after registered 

修复ifconfig命令无法正确显示IP，网关，掩码的问题
geniusgogo/rt-thread,weiyuliang/rt-thread,gbcwbz/rt-thread,hezlog/rt-thread,weety/rt-thread,nongxiaoming/rt-thread,RT-Thread/rt-thread,gbcwbz/rt-thread,FlyLu/rt-thread,armink/rt-thread,ArdaFu/rt-thread,weety/rt-thread,geniusgogo/rt-thread,nongxiaoming/rt-thread,nongxiaoming/rt-thread,gbcwbz/rt-thread,armink/rt-thread,weety/rt-thread,FlyLu/rt-thread,armink/rt-thread,armink/rt-thread,ArdaFu/rt-thread,gbcwbz/rt-thread,RT-Thread/rt-thread,ArdaFu/rt-thread,weiyuliang/rt-thread,geniusgogo/rt-thread,nongxiaoming/rt-thread,weiyuliang/rt-thread,FlyLu/rt-thread,ArdaFu/rt-thread,geniusgogo/rt-thread,RT-Thread/rt-thread,gbcwbz/rt-thread,weiyuliang/rt-thread,weiyuliang/rt-thread,weiyuliang/rt-thread,RT-Thread/rt-thread,ArdaFu/rt-thread,ArdaFu/rt-thread,nongxiaoming/rt-thread,hezlog/rt-thread,weety/rt-thread,FlyLu/rt-thread,gbcwbz/rt-thread,geniusgogo/rt-thread,hezlog/rt-thread,FlyLu/rt-thread,hezlog/rt-thread,RT-Thread/rt-thread,weety/rt-thread,RT-Thread/rt-thread,nongxiaoming/rt-thread,ArdaFu/rt-thread,FlyLu/rt-thread,hezlog/rt-thread,armink/rt-thread,RT-Thread/rt-thread,weety/rt-thread,weiyuliang/rt-thread,hezlog/rt-thread,FlyLu/rt-thread,weety/rt-thread,gbcwbz/rt-thread,geniusgogo/rt-thread,hezlog/rt-thread,nongxiaoming/rt-thread,armink/rt-thread,geniusgogo/rt-thread,armink/rt-thread