hci: fix compile

errata-11838: validate encryption key size to emit GAP Security Level, gap_set_required_encryption_key_size allows to set the required key size

hci: read encryption key size for classic connections after encryption got enabled

hci: set default le scan params (regression from 63270faae)

hci: use scan interval/window from app during init

hci: fix compile for LE-only

hci: support classic connection in gap_secure_connection

hci: support classic connection in gap_authenticated

hci: skip sending second baud rate change if there's no init script and no warm start

bcm: skip reset baud rate after init script if init script is empty, e.g. CYW20707

hci: use switch directly to handle chipset result

Use BTSTACK_FILE__ without __ prefix (MISRAC2012-Rule-21.1)

hci: improved sco tx scheduling (without flow control over UART)

hci: pad scan response data with zeros, fixes #204

hci: map Cypress onto Broadcom

hci: sco tx scheduler - remove arbitrary threshold

hci: fix compile without sco-over-hci

hci: fix sco can send now for usb transports

hci: fix commpile warning

hci: emit two sco can send now if full 120 byte packet in CVSD does not fit into controller buffer

hci: low pass filter for sco rx tracking

hci: schedule next sco tx before trigger send

hci: track SCO RX times, emit SCO can send now based on RX times

hci: remove code for implicit sco flow control

hci: wait with SCO send until first packet received