[DeviceDrivers] change cmd type.

1. Change 'rt_uint8_t' type of cmd to 'int';
2. Add waitqueue;
3. Split device ipc header files;

components/drivers/i2c/i2c_dev.c

@@ -66,7 +66,7 @@ static rt_size_t i2c_bus_device_write(rt_device_t dev,
 }
 
 static rt_err_t i2c_bus_device_control(rt_device_t dev,
-                                       rt_uint8_t  cmd,
+                                       int         cmd,
                                        void       *args)
 {
     rt_err_t ret;