Use os-brick 5.0.1
Use os-brick 5.0.1

Raise minimum version of os-brick to 5.0.1, which contains a
fix for a critical regression.

Depends-on: I372deff54040083e0d2cafee59161c101a2535e4

Change-Id: I8aaaa058c6ec5d383fefb61206854e64049f7e99
Related-bug: #1945323

openstack/cinder,mahak/cinder,mahak/cinder,openstack/cinder