wifi: iwlwifi: mld: don't WARN on WoWLAN suspend w/o netdetect

wifi: iwlwifi: mld: don't WARN on WoWLAN suspend w/o netdetect

Clearly, from a user perspective, it must be valid to configure
WoWLAN and then suspend while not connected to a network. Since
mac80211 doesn't distinguish these cases and simply calls the
driver to suspend whenever WoWLAN is configured, the driver has
to cleanly handle the case where it's called for WoWLAN, it's
not connected but there's also no netdetect configured.

Remove the WARN_ON() and keep returning 1 to disconnect and
then suspend.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Link: https://patch.msgid.link/20260527230313.19720967372b.Iff30814510a26f9f609f98eeea3111c50c1afb31@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>