[SCSI] sd: Move sd.h header file

Christoph objected to having sd.h in include/scsi since it is internal
to the sd driver.  Move it to drivers/scsi/sd.h.
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

drivers/scsi/sd.c

@@ -58,8 +58,8 @@
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_ioctl.h>
 #include <scsi/scsicam.h>
-#include <scsi/sd.h>
 
+#include "sd.h"
 #include "scsi_logging.h"
 
 MODULE_AUTHOR("Eric Youngdale");