scsi: aacraid: Added aacraid.h include guard

Added aacraid.h include guard
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Dave Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/aacraid/aacraid.h

+#ifndef _AACRAID_H_
+#define _AACRAID_H_
 #ifndef dprintk
 # define dprintk(x)
 #endif
@@ -2194,3 +2196,4 @@ extern int aac_commit;
 extern int update_interval;
 extern int check_interval;
 extern int aac_check_reset;
+#endif