io_uring: Support Compare command for verification

io_uring: Support Compare command for verification

Added 'verify_mode' option to io_uring_cmd with --cmd_type=nvme to
support data compare verification with Compare commands rather than Read
commands.  This patch newly added IO_U_F_VER_IN_DEV io_u flag to
represent that verification should be done in device side, not the host
side to skip the actual verification phase in verify_io_u().

Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Link: https://lore.kernel.org/r/20240926010802.27131-1-minwoo.im.dev@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>