wifi: iwlwifi: mvm: adjust csa notifications and commands to MLO

In the following notifications and commands mac_id was replaced
with link_id:
* CANCEL_CHANNEL_SWITCH_CMD
* CHANNEL_SWITCH_START_NOTIF
* CHANNEL_SWITCH_ERROR_NOTIF

The logic around was not changed, so only adjust handling
mac/link id.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230524203151.6aa6e394f5fe.Ie9e78918511ca901f9f3966d774fa74a71a186e3@changeid


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