Bluetooth: Convert mgmt to use HCI chan registration API

This patch converts the existing mgmt code to use the newly introduced
generic API for registering HCI channels with mgmt-like semantics.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --cc include/net/bluetooth/bluetooth.h
Simple merge

diff --cc include/net/bluetooth/hci_core.h
Simple merge

diff --cc net/bluetooth/af_bluetooth.c
Simple merge

diff --cc net/bluetooth/hci_sock.c
Simple merge

diff --cc net/bluetooth/mgmt.c
Simple merge