MLM issues with Micro 6

[e-minguez]

https://bugzilla.suse.com/show_bug.cgi?id=1231205

Basically we need to document this as a known issue and the workaround.

[ranjinimn]

@e-minguez I shall document this under Known issues of Edge 3.3 documentation.
Can you please let me know when the user needs to install SUSE Manager CA with EIB's certificate management?
Is it while creating a customized installation image with Edge Image Builder?

[e-minguez]

In fact, it is documented already here https://documentation.suse.com/suse-edge/3.3/html/edge/quickstart-suma.html#id-download-the-suse-multi-linux-manager-ca-certificate I guess. Let me ping @joesusecom just in case.