gap: support coordinated private random address updates

gap: made mutual authentication for legacy secure connections optional

hci: always init conn link key type

hci: fix build

hci: rename hci_extended_advertising_supported

hci: make hci_extended_advertising_supported public

gap: add gap_le_get_own_advertising_set_address

gap: set IRK for undirected advertising

hci: re-start le connection with address in case of required stop to update lists

hci: clean up resolving list todos

hci: store current random address for outgoing connections in peer resolvable private address field

hci: add hci_is_le_identity_address_type

hci: use hci_event_le_meta_get_subevent_code

hci: avoid erroneous connection struct for direct le connection with resolvable private address

hci: rename gap_get_outgoing_connection

hci: remove redundant check in hci_handle_le_connection_complete_event

hci: rename event_handle_le_connection_complete

hci: free hci connection on connection complete (handle invalid) only if requested

hci: replace assert with check for fuzzer

hci: provide hci_is_le_connection_type

hci: handle le identity addresses in gap functions

hci: identify resolved public/random addresses as le connections

gap: assert advertisement set 0 created before setting adv/scan data for legacy api

hci: provide hci_classic_supported and hci_le_supported

hci: return bool in gap_ssp_supported, hci_classic_supported and hci_le_supported