e2e: add e2e to test pvc-pvc cloning
e2e: add e2e to test pvc-pvc cloning

Added an e2e testcase to test pvc-pvc
cloning.

Signed-off-by: Madhu Rajanna <60fbf37a92c2a0908e31296d18dadbec5a4dae17@gmail.com>

ceph/ceph-csi,ceph/ceph-csi,ceph/ceph-csi,ceph/ceph-csi