wifi: iwlwifi: cfg: finish config split

A long time ago, when transport vs. device configs were
introduced, we wanted to eventually have a list of PCI
IDs and a separate list of devices, but for simplicity
embedded the transport config in the whole config, and
it all got confusing.

Finish splitting that out. Doing so requires having more
IWL_DEV_INFO() entries, but the whole trans/cfg aliasing
goes away and the code becomes a lot simpler.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250502155404.e03f65c0f693.I076a997f800db455b575008f9488b151738ad7ec@changeid