wifi: iwlwifi: mvm: don't leak a link on AP removal

Release the link mapping resource in AP removal. This impacted devices
that do not support the MLD API (9260 and down).
On those devices, we couldn't start the AP again after the AP has been
already started and stopped.

Fixes: a8b5d480 ("wifi: iwlwifi: mvm: Configure the link mapping for non-MLD FW")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241010140328.c54c42779882.Ied79e0d6244dc5a372e8b6ffa8ee9c6e1379ec1d@changeid


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