Lenovo X605: 20.04: updated config for compatibility with focal builds

[luksus42]

• added hint for 2GB/16GB models
• fixed links to to gitlab community-ports
• updated boot.img and checksum
• removed after_install hint, which is not necessary anymore

[luksus42]

@maciek134 , just pinging you on behalf for the maintainers, since NeoTheThird is not active anymore...

[maciek134]

We also seem to have a broken CI...

[luksus42]

yeah, I am not sure what the issue is about, I don't believe that it has something to do with my commit...

[amartinz]

Without the CI getting fixed, any changes merged will be "ignored", as deployment fails to run.

[luksus42]

Hey, thanks for bringing things forward here.

[amartinz]

Thanks to you for fixing the CI and having lots of patience :)