add Sfill before umount

olinux/create_device.sh

@@ -115,6 +115,9 @@ echo "- Write sunxi-with-spl"
 dd if=${UBOOT_FILE} of=${DEVICE} bs=1024 seek=8 >/dev/null 2>&1
 sync
 
+echo "- Sfill"
+sfill -z -l -l -f $MNT
+
 echo "- Umount"
 if [ "${TYPE}" = "loop" ] ; then
   umount $MNT