When performing upgrade, conversion of the PVC storage to k8s secrets
requires the helper pod to run as root in order to delete the files in
the volume. The old vault-manager pod was running as root.
Commit c849a3bb did not account for this and did not test
application-update.
Test Plan:
PASS platform, application upgrade
PASS unit test, manual execution of the procedure with pvc-attach.yaml
Story: 2011073
Task: 50522
Change-Id: I9ab340544408e9478e6fce68d78337d2fded9a09
Signed-off-by: Michel Thebeau <Michel.Thebeau@windriver.com>