wifi: iwlwifi: replace ENOTSUPP with EOPNOTSUPP

ENOTSUPP isn't a standard error code, don't use it. Replace with
EOPNOTSUPP instead.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20231219215605.a69f4347b5f8.I88429d5de8251287ec0b58ff26a588465b9049a5@changeid


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