wifi: rt2x00: remove mod_name from platform_driver

mod_name is a legacy debugging feature with no real modern use. An
analysis of the underlying MIPS setup code reveals it to also be unused.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
Reviewed-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Link: https://patch.msgid.link/20250722212856.11343-3-rosenp@gmail.com


Signed-off-by: Johannes Berg <johannes.berg@intel.com>