Staging: comedi: fix sched.h build breakage

commit d43c36dc removed sched.h from interrupt.h.  This broke some of
the comedi drivers.  This patch fixes this.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/comedi/drivers/me_daq.c

@@ -51,6 +51,7 @@ from http://www.comedi.org
 */
 
 #include <linux/interrupt.h>
+#include <linux/sched.h>
 #include "../comedidev.h"
 
 #include "comedi_pci.h"

drivers/staging/comedi/drivers/ni_mio_common.c

@@ -62,6 +62,7 @@
 /* #define DEBUG_STATUS_B */
 
 #include <linux/interrupt.h>
+#include <linux/sched.h>
 #include "8255.h"
 #include "mite.h"
 #include "comedi_fc.h"

drivers/staging/comedi/drivers/ni_pcidio.c

@@ -70,6 +70,7 @@ comedi_nonfree_firmware tarball available from http://www.comedi.org
 /* #define DEBUG_FLAGS */
 
 #include <linux/interrupt.h>
+#include <linux/sched.h>
 #include "../comedidev.h"
 
 #include "mite.h"