cephfs: replace Errorf with ErrorLog in getVolumeRootPathCeph
cephfs: replace Errorf with ErrorLog in getVolumeRootPathCeph

replace Errorf with ErrorLog in getVolumeRootPathCeph
for context based logging.

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

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