net: fix MIPS fallout from "net: remove interrupt.h inclusion from netdevice.h"

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/mipsnet.c b/drivers/net/mipsnet.c
index 869f0ea..004e64a 100644
--- a/drivers/net/mipsnet.c
+++ b/drivers/net/mipsnet.c
@@ -5,6 +5,7 @@
  */
 
 #include <linux/init.h>
+#include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>