disk/cryptodisk: Fix missing change when updating to use grub_uuidcasecmp()

This was causing the cryptomount command to return failure even though
the crypto device was successfully added. Of course, this meant that any
script using the return code would behave unexpectedly.

Fixes: 3cf2e848bc (disk/cryptodisk: Allows UUIDs to be compared in a dash-insensitive manner)

Suggested-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Patrich Steinhardt <ps@pks.im>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

grub-core/disk/cryptodisk.c

@@ -1236,7 +1236,8 @@ grub_cryptodisk_scan_device (const char *name,
   dev = grub_cryptodisk_scan_device_real (name, source, cargs);
   if (dev)
     {
-      ret = (cargs->search_uuid != NULL && grub_strcasecmp (cargs->search_uuid, dev->uuid) == 0);
+      ret = (cargs->search_uuid != NULL
+	     && grub_uuidcasecmp (cargs->search_uuid, dev->uuid, sizeof (dev->uuid)) == 0);
       goto cleanup;
     }