scsi: 3w-9xxx: fix format string warnings

Fixed the following warnings (reported by cppcheck):
[drivers/scsi/3w-9xxx.c:166]: (warning) %d in format string (no. 2) requires 'int' but the argument type is 'unsigned int'. [drivers/scsi/3w-9xxx.c:166]: (warning) %d in format string (no. 3) requires 'int' but the argument type is 'unsigned int'. [drivers/scsi/3w-9xxx.c:166]: (warning) %d in format string (no. 4) requires 'int' but the argument type is 'unsigned int'. [drivers/scsi/3w-9xxx.c:166]: (warning) %d in format string (no. 5) requires 'int' but the argument type is 'unsigned int'. [drivers/scsi/3w-9xxx.c:166]: (warning) %d in format string (no. 6) requires 'int' but the argument type is 'unsigned int'. [drivers/scsi/3w-9xxx.c:166]: (warning) %d in format string (no. 7) requires 'int' but the argument type is 'unsigned int'. [drivers/scsi/3w-9xxx.c:166]: (warning) %d in format string (no. 8) requires 'int' but the argument type is 'unsigned int'. [drivers/scsi/3w-9xxx.c:166]: (warning) %d in format string (no. 9) requires 'int' but the argument type is 'unsigned int'. [drivers/scsi/3w-9xxx.c:166]: (warning) %d in format string (no. 10) requires 'int' but the argument type is 'unsigned int'. [drivers/scsi/3w-9xxx.c:166]: (warning) %d in format string (no. 11) requires 'int' but the argument type is 'unsigned int'.

---
 drivers/scsi/3w-9xxx.c |   20 ++++++++++----------
 1 files changed, 10 insertions(+), 10 deletions(-)

index 7600639..123eba5 100644
@@ -164,16 +164,16 @@ static ssize_t twa_show_stats(struct device *dev,
 
 	spin_lock_irqsave(tw_dev->host->host_lock, flags);
 	len = snprintf(buf, PAGE_SIZE, "3w-9xxx Driver version: %s\n"
-		       "Current commands posted:   %4d\n"
-		       "Max commands posted:       %4d\n"
-		       "Current pending commands:  %4d\n"
-		       "Max pending commands:      %4d\n"
-		       "Last sgl length:           %4d\n"
-		       "Max sgl length:            %4d\n"
-		       "Last sector count:         %4d\n"
-		       "Max sector count:          %4d\n"
-		       "SCSI Host Resets:          %4d\n"
-		       "AEN's:                     %4d\n", 
+		       "Current commands posted:   %4u\n"
+		       "Max commands posted:       %4u\n"
+		       "Current pending commands:  %4u\n"
+		       "Max pending commands:      %4u\n"
+		       "Last sgl length:           %4u\n"
+		       "Max sgl length:            %4u\n"
+		       "Last sector count:         %4u\n"
+		       "Max sector count:          %4u\n"
+		       "SCSI Host Resets:          %4u\n"
+		       "AEN's:                     %4u\n",
 		       TW_DRIVER_VERSION,
 		       tw_dev->posted_request_count,
 		       tw_dev->max_posted_request_count,

1.7.0.4