generic/003: Amend the test for exfat

Update the test so it can be run even for exfat which has 2 seconds
granularity for access_time and does not have a timestamp for
metadata change.

Signed-off-by: Pavel Reichl <preichl@redhat.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
1 file changed