X1000:drv_uart.c:修复引脚路由中的问题/Fix bugs in pin routing
X1000:drv_uart.c:修复引脚路由中的问题/Fix bugs in pin routing

在配置引脚路由时需要将未使用的引脚配置为输入模式，
否则有可能同u-boot中的配置产生冲突。

Unused pins need to be configured as input mode when
configuring pin routing, otherwise there may be
conflicts with the configuration in u-boot.

Signed-off-by: Zhou Yanjie <17015b8cdc0ca77b55f0bd985068d713e2de996d@zoho.com>

RT-Thread/rt-thread,weety/rt-thread,armink/rt-thread,FlyLu/rt-thread,weety/rt-thread,RT-Thread/rt-thread,weiyuliang/rt-thread,ArdaFu/rt-thread,weety/rt-thread,hezlog/rt-thread,geniusgogo/rt-thread,gbcwbz/rt-thread,hezlog/rt-thread,weiyuliang/rt-thread,nongxiaoming/rt-thread,weety/rt-thread,geniusgogo/rt-thread,AubrCool/rt-thread,nongxiaoming/rt-thread,AubrCool/rt-thread,AubrCool/rt-thread,weety/rt-thread,armink/rt-thread,AubrCool/rt-thread,gbcwbz/rt-thread,hezlog/rt-thread,FlyLu/rt-thread,nongxiaoming/rt-thread,AubrCool/rt-thread,ArdaFu/rt-thread,AubrCool/rt-thread,ArdaFu/rt-thread,ArdaFu/rt-thread,weety/rt-thread,weiyuliang/rt-thread,gbcwbz/rt-thread,geniusgogo/rt-thread,weiyuliang/rt-thread,weety/rt-thread,hezlog/rt-thread,nongxiaoming/rt-thread,RT-Thread/rt-thread,weiyuliang/rt-thread,armink/rt-thread,armink/rt-thread,weiyuliang/rt-thread,gbcwbz/rt-thread,nongxiaoming/rt-thread,armink/rt-thread,geniusgogo/rt-thread,hezlog/rt-thread,ArdaFu/rt-thread,armink/rt-thread,FlyLu/rt-thread,RT-Thread/rt-thread,ArdaFu/rt-thread,weiyuliang/rt-thread,gbcwbz/rt-thread,FlyLu/rt-thread,geniusgogo/rt-thread,AubrCool/rt-thread,geniusgogo/rt-thread,FlyLu/rt-thread,nongxiaoming/rt-thread,gbcwbz/rt-thread,nongxiaoming/rt-thread,hezlog/rt-thread,RT-Thread/rt-thread,FlyLu/rt-thread,ArdaFu/rt-thread,geniusgogo/rt-thread,RT-Thread/rt-thread,FlyLu/rt-thread,hezlog/rt-thread,gbcwbz/rt-thread,armink/rt-thread,RT-Thread/rt-thread