Fix directory for volume/snapshot boot pattern

When using full image of ubuntu tmp directory is cleared on boot
so using other directory which is not cleaned.

Related-Prod: https://mirantis.jira.com/browse/PRODX-47216
Change-Id: I3d76d2ab4fcda6e08a840382657b966732fdb11c
(cherry picked from commit 2f19a48ea404ad2405671e21bbda3ff8520965d0)
1 file changed