Add parameter for path in backup location

[Rohit-PX]

Signed-off-by: Rohit-PX [email protected]

What type of PR is this? integration-test

What this PR does / why we need it: Add configurable bucket name to stork integration test

Does this PR change a user-facing CRD or CLI?: no

Is a release note needed?: no

Does this change need to be cherry-picked to a release branch?: no

[cnbu-jenkins]

Can one of the admins verify this patch?