CA-75632: added doc to VGPU.create call to fix warning when building the api java bindings.
CA-75632: added doc to VGPU.create call to fix warning when building the api java bindings.

Signed-off-by: Konstantina Chremmou <a7d1f757a659045fb6db8c1e3849a1c8ad00b97a@citrix.com>
Imported-by: John Else <37b74501daa612e48fea94f9846ed4ddeb6a8f07@citrix.com>

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