Request backport of bf5a54bc0e3d to 6.18.y

[Rachel Menge <rachelmenge@linux.microsoft.com>]

Hi stable team,

Please consider applying the following upstream commit to 6.18.y:

bf5a54bc0e3d8962474fcd611f1266eba036232f
doc/netlink: netlink-raw: Add max check

The 6.18.y tree contains these related changes:

2fd0880f0272 ("net: reject oversized tx_queue_len at netlink parse time")
982c7f66c041 ("neighbour: Enforce min/max to NDTPA_INTERVAL_PROBE_TIME_MS.")

Those changes add checks.max to the rt-link.yaml and rt-neigh.yaml
Netlink specifications. However, the 6.18.y version of
Documentation/netlink/netlink-raw.yaml neither defines len-or-limit nor
permits checks.max.

I found this while building YNL from v6.18.55. I reproduced the failure
against the unmodified v6.18.55 tag with:

   make -C tools/net/ynl/generated rt-link-user.h

YNL code generation fails JSON schema validation because the rt-link and
rt-neigh specifications use checks.max while netlink-raw.yaml rejects that
property:

   jsonschema.exceptions.ValidationError:
   Additional properties are not allowed ('max' was unexpected)

The requested upstream commit updates only the build-time YAML schema. It
does not change kernel runtime behavior.

I also checked 6.1.y, 6.6.y, 6.12.y, and 6.19.y. Those branches do not
contain the rt-link.yaml and rt-neigh.yaml checks.max additions that create
this mismatch, so this request is limited to 6.18.y.

Thanks,
Rachel Menge