add LTE dtu sim7600ce 4G module tcp test

board/LTE_DTU_SIM7600/BSP/Inc/mcu_init.h

@@ -0,0 +1,20 @@
+#ifndef __MCU_INIT_H
+#define __MCU_INIT_H
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#include "main.h"
+#include "stm32f1xx_hal.h"
+#include "i2c.h"
+#include "usart.h"
+#include "gpio.h"
+#include "tos.h"
+
+void board_init(void);
+void SystemClock_Config(void);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /*__ __MCU_INIT_H */