[BSP][N32G45XVL]适配串口v2驱动 (#10222)

Author: koudaiNEW

bsp/n32/libraries/N32G45x_Firmware_Library/SConscript

@@ -17,6 +17,8 @@ n32g45x_std_periph_driver/src/misc.c
 
 if GetDepend(['RT_USING_SERIAL']):
     src += ['n32g45x_std_periph_driver/src/n32g45x_usart.c']
+    if GetDepend(['RT_SERIAL_USING_DMA']):
+        src += ['n32g45x_std_periph_driver/src/n32g45x_dma.c']
 
 if GetDepend(['RT_USING_I2C']):
     src += ['n32g45x_std_periph_driver/src/n32g45x_i2c.c']