wifi: mac80211: remove TDLS peers on link deactivation

If a link is deactivated, we really cannot sustain any
TDLS connections on that link any more. With the API
now changed, fix this issue and remove TDLS connections.

Change-Id: I3474dbde79e9e7a539d47f6f81f32e6c3e459080
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>