While troubleshooting grub network boot issues,
I did some reading and found out our model of config
was technically wrong to use a menuentry to load config
in another menuentry which may or may not be loaded.
I mean it worked, but it is simpler to just say
"go source this content into our state".
Change-Id: I5e2ec2dc5110fa0a4f9e11478502a199354454f5