tools: ynl-gen: support limits using definitions

Support using defines / constants in integer checks.
Carolina will need this for rate API extensions.

Reported-by: Carolina Jubran <cjubran@nvidia.com>
Link: https://lore.kernel.org/1e886aaf-e1eb-4f1a-b7ef-f63b350a3320@nvidia.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250203215510.1288728-2-kuba@kernel.org


Signed-off-by: Paolo Abeni <pabeni@redhat.com>