Moved k3s off the microSD to the internal eMMC

I will most definitively regret that because NanoPi R6s _only_ has 32GB internal eMMC... and Debian is a chonky distro. Incus will live on the microSD, for the sheer amount of storage I need for BTC alone. I really need to get my ass in gear and get that Rock 5B and slap an NVMe in there. bleh...