CA-61222: revert the semantics of VM.install to pre-Cowley
CA-61222: revert the semantics of VM.install to pre-Cowley

Signed-off-by: Zheng Li <fff69bf00b8ec5b6098a1768eaaaa75f40b8795d@eu.citrix.com>

djs55/xcp-rrdd,robhoes/squeezed,koushikcgit/xcp-rrdd,simonjbeaumont/xcp-rrdd,koushikcgit/xcp-rrdd,koushikcgit/xcp-rrdd,djs55/xcp-networkd,simonjbeaumont/xcp-rrdd,johnelse/xcp-rrdd,sharady/xcp-networkd,djs55/squeezed,sharady/xcp-networkd,koushikcgit/xcp-networkd,djs55/xcp-networkd,koushikcgit/xcp-networkd,johnelse/xcp-rrdd,djs55/xcp-rrdd