Hitachi: wrong exception when deleted volume is busy

[Atsushi Kawai]

When delete_volume() is called and the deleted volume is busy,
Hitachi Cinder driver should be issued the exception with the name ``VolumeIsBusy``,
but ``VolumeDriverException`` is issued.
User would be confused by wrong exception.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/cinder/+/885986

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/cinder/+/885986
Committed: https://opendev.org/openstack/cinder/commit/a0d075219a1776f255e44982ffae652d5ab80506
Submitter: "Zuul (22348)"
Branch: master

commit a0d075219a1776f255e44982ffae652d5ab80506
Author: Atsushi Kawai <email address hidden>
Date: Tue Jun 20 19:24:01 2023 +0900

    Hitachi: Fix exception when deleted volume is busy

    This patch is to fix an exception name when deleted volume is busy
    in delete_volume().
    Although exception ``VolumeIsBusy`` should be issued in that case,
    ``VolumeDriverException`` is issued. It should be fixed.

    Closes-Bug: #2024418
    Change-Id: I5405790c7cd4ca513ceea70380be723a54c3fe3c

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/cinder 24.0.0.0rc1 release candidate.