netlink: specs: devlink: fix reply command values

Make sure that the command values used for replies are correct. This is
only affecting generated userspace helpers, no change on kernel code.

Fixes: 7199c862 ("netlink: specs: devlink: add commands that do per-instance dump")
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20231012115811.298129-1-jiri@resnulli.us


Signed-off-by: Jakub Kicinski <kuba@kernel.org>