helm: configure for k8s 1.16 or newer
helm: configure for k8s 1.16 or newer

Helm requires some changes to be compatible with k8s 1.16.
The deployment needs to use v1 apiVersion and a selector
needs to be added. A tiller service account is also required.

Signed-off-by: travisn <a8b474fdb3f77f44446f0ab9ddca8147b09b3a9e@redhat.com>

rook/rook,rook/nfs,rook/rook,rook/rook,rook/rook,rook/rook,rook/nfs,rook/nfs