nds32: Support AE3XX platform.

Support Andestech AE3xx platform: serial, timer device tree flow.

Signed-off-by: rick <rick@andestech.com>
diff --git a/drivers/timer/Makefile b/drivers/timer/Makefile
index 3dad956..ced7bd6 100644
--- a/drivers/timer/Makefile
+++ b/drivers/timer/Makefile
@@ -13,3 +13,4 @@
 obj-$(CONFIG_STI_TIMER)		+= sti-timer.o
 obj-$(CONFIG_ARC_TIMER)	+= arc_timer.o
 obj-$(CONFIG_AG101P_TIMER) += ag101p_timer.o
+obj-$(CONFIG_AE3XX_TIMER) += ae3xx_timer.o