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None of these are relevant to Marketo and GDPR.
Marketo's tracking cookie is _mkto_trk. It's a persistent cookie that lasts for 2 years (by default) after last use.
Marketo cookie name is _mkto_trk
_A_source and _A_time obvisously go together. I have never seen them.
ids_sso is obvisouly a single Sign On cookie (that enables you to avoid having the need to login to a portal...)
firstTouchGA is probably a custom cookie that probably stores first touch info from G. Analytics.
LPSID cookies are from the Liveperson app, AFAIK. see Introduction | LivePerson APIs