Hide the submenu if .menu isn't set
Hide the submenu if .menu isn't set

Change-Id: I563581ff62878afe32b056c4a5a1bea0f06eb7b0
Signed-off-by: Endre Karlson <a23d9620b236dc6edf4d69602ad08b9887eb8557@gmail.com>

opendaylight/dlux,opendaylight/dlux,inocybe/odl-dlux,inocybe/odl-dlux,pinaxia/dlux,pinaxia/dlux,inocybe/odl-dlux,pinaxia/dlux,stshtina/ODL,opendaylight/dlux,stshtina/ODL,stshtina/ODL