ARM HDLCD: Fix compilation on Linux 3.9

Signed-off-by: Jon Medhurst <tixy@linaro.org>
(cherry picked from commit ecc90d9ec039abe8b78e2c98dc71d0cb0b6b5b79)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
diff --git a/drivers/video/arm-hdlcd.c b/drivers/video/arm-hdlcd.c
index bd5fe68..f9c4e74 100644
--- a/drivers/video/arm-hdlcd.c
+++ b/drivers/video/arm-hdlcd.c
@@ -21,6 +21,7 @@
 #include <linux/fb.h>
 #include <linux/clk.h>
 #include <linux/init.h>
+#include <linux/interrupt.h>
 #include <linux/ioport.h>
 #include <linux/dma-mapping.h>
 #include <linux/platform_device.h>