Assign to certain device

Sometimes a task may wish to run on a certain DCU, it can fill the hygon.com/use-gpuuuid field in pod annotation. HAMi scheduler will try to fit in device with that uuid.

For example, a task with the following annotation will be assigned to the device with uuid DCU-123456

metadata:
  annotations:
    hygon.com/use-gpuuuid: "DCU-123456"

NOTICE: Each DCU UUID is unique in a cluster, so assign a certain UUID means assigning this task to certain node with that DCU