Roll Fuchsia SDK from 4d54ec8046e1 to 7fb0692d9161

Manual roll to update code since zircon.ethernet FIDL lib was renamed to
fuchsia.hardware.ethernet.

CQ_INCLUDE_TRYBOTS=luci.chromium.try:fuchsia-arm64-cast;luci.chromium.try:fuchsia-x64-cast
[email protected]

Change-Id: If658e709608f0418174868784ecb9f65b0057750
Reviewed-on: https://chromium-review.googlesource.com/c/1392228
Reviewed-by: Sergey Ulanov <[email protected]>
Commit-Queue: Sergey Ulanov <[email protected]>
Cr-Commit-Position: refs/heads/master@{#619206}
5 files changed