nvme: fix the nsid value to print in nvme_validate_or_alloc_ns

stable inclusion
from stable-5.10.27
commit f12d05f70282df0af59ee891f5cbfe147c1d9a41
bugzilla: 51493

--------------------------------

commit f4f9fc29 upstream.

ns can be NULL at this point, and my move of the check from
the original patch by Chaitanya broke this.

Fixes: 0ec84df4 ("nvme-core: check ctrl css before setting up zns")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Acked-by:   Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>