ceph: add support for VAULT_TLS_SERVER_NAME
ceph: add support for VAULT_TLS_SERVER_NAME

We now support VAULT_TLS_SERVER_NAME which represents the name to use as
the SNI host when connecting via TLS.
This is typically needed when a single host has multiple certificates,
same as virtual hosts but for SSL certificates.

Signed-off-by: Sébastien Han <62d754cc350e84d3b1c32ae79f976f5348e74a40@redhat.com>

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