CRIS: fix defconfig build failure

The CRIS defconfig fails to build with:

drivers/serial/crisv10.c: In function 'rs_wait_until_sent':
drivers/serial/crisv10.c:3926: error: implicit declaration of function 'lock_kernel' drivers/serial/crisv10.c:3943: error: implicit declaration of function 'unlock_kernel'

Include smp_lock.h.

Cc: Jesper Nilsson <[email protected]>
LKML-Reference: <new-submission>

---
 drivers/serial/crisv10.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

index 7be52fe..31f1723 100644
@@ -18,6 +18,7 @@ static char *serial_version = "$Revision: 1.25 $";
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/major.h>
+#include <linux/smp_lock.h>
 #include <linux/string.h>
 #include <linux/fcntl.h>
 #include <linux/mm.h>

Thanks, added to the cris-tree.

/^JN - Jesper Nilsson

               Jesper Nilsson -- [email protected]