This is initialized to docker.io, keeping the default behaviour
if not specified. However, it allows us to specify a private
registry later on.
Related: OS#4839
Change-Id: I32d4ee6256033c809108c1b86cb6b6c58d880f49
The sitmrace2.git firmware buidl requires this cross-compiler. We
so far didn't build it within this container, but lets make sure
we could, if we'd want.
Change-Id: If335247381aab2621fcbe6e6e596a1416e05fdf4
Harald Welte