Bluetooth: hci_sync: Remove duplicate statement

This removes the following duplicate statement in
hci_le_ext_directed_advertising_sync():
cp.own_addr_type = own_addr_type;

Signed-off-by: Inga Stotland <inga.stotland@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>