anv: duplicate fds before importing into magma connection

Bug:b/278904966

Change-Id: Id74165f2c8298b4410742ddba977554e849c7a50
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/mesa/+/857900
Reviewed-by: John Bauman <jbauman@google.com>
1 file changed