[bsp][Vango V85xx] modify NULL to RT_NULL
@@ -127,7 +127,7 @@ static rt_uint32_t xfer(struct rt_spi_device* device, struct rt_spi_message* mes
struct rt_spi_configuration * config = &device->config;
RT_ASSERT(device != RT_NULL);
- RT_ASSERT(message != NULL);
+ RT_ASSERT(message != RT_NULL);
/* take CS */
if(message->cs_take)
