mei: txe: include irqreturn.h for irqreturn_t etc

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/hw-txe.c b/drivers/misc/mei/hw-txe.c
index 19579e5..49a5ed3 100644
--- a/drivers/misc/mei/hw-txe.c
+++ b/drivers/misc/mei/hw-txe.c
@@ -18,6 +18,7 @@
 #include <linux/jiffies.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
+#include <linux/irqreturn.h>
 
 #include <linux/mei.h>