upcloud: encrypted at rest volumes

[robinAwallace]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind api-change
/kind bug
/kind cleanup
/kind design
/kind documentation
/kind failing-test
/kind feature
/kind flake

What this PR does / why we need it:

Im creating tihs PR for reviews and then I will create a PR upstream.

1. Adds support for encrypted bootdisks for vms
2. Bump the upcloud csi driver and added more default storage classes.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[Xartos]

Make sure to update the branch before merging. @davidumea has done some changes there, so they don't dissapear