[controller] Ensure partUUID is used in Block Device name generation

[AleksZimin]

Description

This PR corrects a recent oversight where partUUID stopped being used for naming block devices of type 'part' due to an inadvertent change. This fix reinstates the original functionality, ensuring that partUUID is once again utilized in the naming process for block devices.

Why do we need it, and what problem does it solve?

The reintroduction of partUUID for device naming corrects a critical deviation from our standard device naming. The absence of partUUID in the naming process could lead to potential identification issues and conflicts within the system. By restoring this functionality, we ensure consistent and reliable identification of block devices.

What is the expected result?

After the application of this fix, block devices of type 'part' will once again be named using their partUUID, as originally intended.

Checklist

• The code is covered by unit tests.
• e2e tests passed.
• Documentation updated according to the changes.
• Changes were tested in the Kubernetes cluster manually.