The NVM Express specification generally uses 'zeroes' and not 'zeros',
so let us align with it.

Cc: Fam Zheng <fam@euphon.net>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>