scsi-disk: Fix typo (uint32 -> uint32_t)

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index 21b862d..1585683 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -1461,7 +1461,7 @@
     SCSIDiskReq *r = data->r;
     SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev);
     uint64_t sector_num;
-    uint32 nb_sectors;
+    uint32_t nb_sectors;
 
     r->req.aiocb = NULL;
     if (ret < 0) {