l2cap: fix ertm tx buffer reconfiguration

l2cap: send fcs option from ertm config, use fcs if either side requested it

l2cap: mark internal BTstack events

l2cap: fix returned error codes for insufficient CBM connection

l2cap: add FCS option to ERTM configure response

l2cap: fix spelling

l2cap: set extended flow control bit in information response if enabled

l2cap: suppress ecbm connection closed event before incoming connection event

l2cap: provide access to number of available credits in cbm/ecbm

l2cap: fix warnings

l2cap: add l2cap_get_dynamic_channel_fuzz

hci_dump: route internal events through hci_dump_btstack_event

l2cap: fix uninitialized variable channel->local_mps in function l2cap_cbm_run_channel (#583)

Co-authored-by: xiaobye <skps96g313@gmail>

l2cap: fix unused-variable warning (#561)

Co-authored-by: Bob Abeles <[email protected]>

hci: remove bool from hci_reserve_packet_buffer and similiar higher layer functions

l2cap: setup test channels for fuzzer

l2cap: use hci_is_le_connection_type

l2cap: use address type from incoming cbm connection request instead of LE Random

l2cap: send reject for incomplete signaling command

l2cap: handle invalid l2cap signaling command without data

l2cap: fix build

use DISCONNECTION_RESPONSE for classic disconnnect response without channel

l2cap: respond with disconnect response for closed channel

l2cap: check cmd len before reading dest_cid in classic signaling handler

l2cap: send command reject with invalid cid for configure request on closed channel

l2cap: ignore signaling responses in closed state