NDS32: Generic Board Support and Unsupport

	Add nds32 ag101p generic board support.

Signed-off-by: Kun-Hua Huang <kunhua@andestech.com>
diff --git a/arch/nds32/lib/interrupts.c b/arch/nds32/lib/interrupts.c
index d86cc23..72ff78d 100644
--- a/arch/nds32/lib/interrupts.c
+++ b/arch/nds32/lib/interrupts.c
@@ -35,6 +35,10 @@
 
 #ifdef CONFIG_USE_INTERRUPT
 
+int interrupt_init(void)
+{
+	return 0;
+}
 /* enable interrupts */
 void enable_interrupts(void)
 {