* Fix homekit_controller pairing retry
If the device was busy on the first pairing attempt, it
was not possible to retry.
* always restart pairing on recoverable execptions
* move code
* malformed pin is safe to restart
* make busy_error an abort
* switch max retries, simplify tests
* try pairing later
* try pairing later
* merge
* s/tlv_error/protocol_error/g
* Adjust wording