[fuchsia] Transition zx_vmo_clone to zx_vmo_create_child.

* The zx_vmo_clone syscall was renamed in Zircon.
* Also remove uses of the ZX_VMO_*NON_RESIZEABLE in the same
  file. This macro is now a no-op and will soon be removed from
  Zircon.

Bug: 973978, 973981
Change-Id: Ia544daa03627b73af496183847067e019253109e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1659017
Commit-Queue: Fabrice de Gans-Riberi <fdegans@chromium.org>
Auto-Submit: Fabrice de Gans-Riberi <fdegans@chromium.org>
Reviewed-by: Sergey Ulanov <sergeyu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#668960}
1 file changed