VOL-1249 OpenOLT - remove tight coupling with brcm_openomci_onu adapter
VOL-1249 OpenOLT - remove tight coupling with brcm_openomci_onu adapter

Change-Id: Ie554a711e705f277a0aa66e5ce0d570d50fcd27a

opencord/voltha,opencord/voltha,opencord/voltha,opencord/voltha,opencord/voltha