wifi: cfg80211/mac80211: Add fallback mechanism for INDOOR_SP connection

wifi: cfg80211/mac80211: Add fallback mechanism for INDOOR_SP connection

Implement fallback to LPI mode when SP mode is not permitted
by regulatory constraints for INDOOR_SP connections.
Limit fallback mechanism to client mode.

Signed-off-by: Pagadala Yesu Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20251110140806.8b43201a34ae.I37fc7bb5892eb9d044d619802e8f2095fde6b296@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>