Bluetooth: Add support for L2CAP Extended Flow Spec option.

Add send and receive of Extended Flow Spec option during L2CAP
lockstep configuration and passing the flow specs to HCI.

Signed-off-by: Peter Krystad <pkrystad@codeaurora.org>

Conflicts:

	include/net/bluetooth/hci.h
	include/net/bluetooth/hci_core.h
	net/bluetooth/l2cap_core.c
1 file changed