gitlab-ci: re-enable all a630 jobs

I haven't noticed tftp boot issues in last few days, not sure if they where just a fluke on Mon or if it is somehow related to # of jobs we run (ie. having more of the c630 runners powered up and running more of the time).

Let's turn them back on and see what happens.

Signed-off-by: Rob Clark robdclark@chromium.org