Fix cinder-volume uses latest req-id for all log calls
Fix cinder-volume uses latest req-id for all log calls

Currently all log entries will have the request ID of the
latest request that was received in the cinder-volume service.

To fix this we just move the monkey patching to the top in the
imports.

Change-Id: Ic1ad7a38cf21256d9446fd2c0270610b4cfe75c5
Closes-Bug: #1773924

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