The ZX_VM_FLAG_PERM_* names have been deprecated in favour of the
ZX_VM_PERM_* form, and will shortly be removed from the Fuchsia SDK.

Bug: chromium:925597
Change-Id: Ic05912cbf9758915e1bc97c41c682aee028a3b5d
Reviewed-on: https://chromium-review.googlesource.com/c/1437817Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Wez <wez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59138}