s390/ccwdev: Include asm/schid.h.

Get the definition of struct subchannel_id.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/include/asm/ccwdev.h

@@ -12,15 +12,13 @@
 #include <linux/mod_devicetable.h>
 #include <asm/fcx.h>
 #include <asm/irq.h>
+#include <asm/schid.h>
 
 /* structs from asm/cio.h */
 struct irb;
 struct ccw1;
 struct ccw_dev_id;
 
-/* from asm/schid.h */
-struct subchannel_id;
-
 /* simplified initializers for struct ccw_device:
  * CCW_DEVICE and CCW_DEVICE_DEVTYPE initialize one
  * entry in your MODULE_DEVICE_TABLE and set the match_flag correctly */