Add voltha repo as submodule and support arm64 54/554/1
-rw-r--r-- 7 .gitignore
-rw-r--r-- 5236 .gitmodules
-rw-r--r-- 81 .gitreview
-rw-r--r-- 11357 LICENSE
drwxr-xr-x - ci
drwxr-xr-x - docs
drwxr-xr-x - src
-rw-r--r-- 932 tox.ini