btrfs/253: skip on zoned mode as we cannot change the chunk size

btrfs/253: skip on zoned mode as we cannot change the chunk size

On zoned mode, we have a fixed chunk size which is equal to the zone size.
So, we cannot change the chunk size, and running this test results in a
failure with below.

    --- tests/btrfs/253.out     2021-12-10 04:33:53.000000000 +0000
    +++ /host/results/btrfs/253.out.bad 2022-07-26 05:58:10.000000000 +0000
    @@ -2,9 +2,16 @@
     Capture default chunk sizes.
     First allocation.
     Second allocation.
    +./common/rc: line 4670: echo: write error: Invalid argument
    +./common/rc: line 4670: echo: write error: Invalid argument
     Calculate request size so last memory allocation cannot be completely fullfilled.
     Third allocation.
    ...

It is no use to test this feature on zoned mode. So, just skip it.

Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>