cxmanage: don't require tftp unless using --all or fwupdate
cxmanage: don't require tftp unless using --all or fwupdate

Cynerva/cxmanage,SilverLiningSystems/cxmanage-test2,Cynerva/cxmanage,SilverLiningSystems/cxmanage-test2,SLS-Dev/cxmanage,SilverLiningSystems/cxmanage-test,SLS-Dev/cxmanage,SilverLiningSystems/cxmanage-test