fix: 修复审查发现的4个高危问题

1. UartDebug: RS485通道1关闭指令误操作通道2,修正'u'升降级通道混淆
2. bsp: GPIOInit新增PA3(ADC电源控制引脚)初始化为输出
3. main.h: Nonce从int16_t改为uint16_t,消除rand()溢出导致LPTimer0延时异常
4. SGCP: SUB_STATUS_BROADCAST_SYNC_TIME调用ToSDSetColTime改为ToSDSyncTime

source/src/bsp.c

@@ -390,6 +390,8 @@ static void GPIOInit(void)
 	Gpio_Init(LASER1_ON_OFF_PORTx,LASER1_ON_OFF_PINx,&GpioInitStruct);		
 	Gpio_Init(LASER2_ON_OFF_PORTx,LASER2_ON_OFF_PINx,&GpioInitStruct);
 	Gpio_Init(LASER3_ON_OFF_PORTx,LASER3_ON_OFF_PINx,&GpioInitStruct);
+	//< 	ADC???????
+	Gpio_Init(AD_ON_OFF_PORTx,AD_ON_OFF_PINx,&GpioInitStruct);
 	
 	GpioInitStruct.bOutputVal = true;				///< 端口默认输出配置->高电平
 	//<	LORA --> RST