Bluetooth: Make l2cap_recv_acldata() and sco_recv_scodata() return void

The return value of l2cap_recv_acldata() and sco_recv_scodata()
are not used, then change it to return void

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

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

diff --cc net/bluetooth/l2cap_core.c
Simple merge

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