wifi: mac80211: improve association error reporting slightly

wifi: mac80211: improve association error reporting slightly

There is no reason to check the request flags for each of the links, so
pull that out of the loop. Also, within the loop we can set the per-link
error everywhere.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240318184907.695faa9be279.I71b11a8d66a9cae4c27e242a47d1d92922609b03@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>