microceph disk list ignores listing disks less than 2GB

[hemanthnakkina]

Issue report

What version of MicroCeph are you using ?

reef/stable

What are the steps to reproduce this issue ?

Follow tutorial https://canonical-microceph.readthedocs-hosted.com/en/latest/tutorial/single-node/ Ensure the disk size is less than 2GB

What happens (observed behaviour) ?

microceph disk list --> does not print disks that are less than 2GB microceph add-osd does not seem to have such restriction

What were you expecting to happen ?

Disks that are less than 2GB should not be SILENTLY ignored as the information will be missing by the tools using microceph command and an additional overhead on the tools to check device size.

Relevant logs, error output, etc.

Additional comments.

[1] https://github.com/canonical/microceph/blob/450240f5dd0d24853354a5a3306a5bd85b429c9a/microceph/cmd/microceph/disk_list.go#L183