[alln][fdio] Move //zircon/system/ulib/fdio to //sdk/lib/fdio

Bug: 54057
Change-Id: I640677a5b58d40bf9d00f47083964fcd2d8c8429
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/mesa/+/405947
Reviewed-by: Craig Stout <cstout@google.com>
Reviewed-by: P.Y. Laligand <pylaligand@google.com>
3 files changed