Make the component list a bit more readable.
Make the component list a bit more readable.

Also, add commented-out virtio components.

rumpkernel-attic/rumprun-baremetal,rumpkernel-attic/rumprun-baremetal,ujamjar/rumpuser-baremetal,rumpkernel-attic/rumprun-baremetal,ujamjar/rumpuser-baremetal,ujamjar/rumpuser-baremetal