config: remove qemu jobs from lab-qualcomm

[mwasilew]

QEMU jobs use container pulled from hub.docker.com. After the lab move pulling from this registry is no longer possible at Qualcomm. This patch disables QEMU jobs from Qualcomm lab.

[pawiecz]

@mwasilew would this still be an issue for any Docker registry or for hub.docker.com only?

Other registry could be provided as a task param in the template.

[mwasilew]

@pawiecz it's just dockerhub. I'm able to pull from AWS or github for example. I don't know how to change the template, so I propose to disable the job for now. Having a parameter would be the way to go forward for sure.

[nuclearcat]

@mwasilew can you rebase PR and i will merge it?

[mwasilew]

@nuclearcat done.