Roll Fuchsia SDK from bff6fe5e28d5 to 9a796e9c3e77

The AutoRoll server is located here: https://autoroll.skia.org/r/fuchsia-sdk-chromium-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


CQ_INCLUDE_TRYBOTS=luci.chromium.try:fuchsia-arm64-cast;luci.chromium.try:fuchsia-x64-cast
TBR=cr-fuchsia+bot@chromium.org

Change-Id: Ia05958c388696be00b9ce8dbbedc2a3202fbc065
Reviewed-on: https://chromium-review.googlesource.com/c/1350293Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#610854}

build/fuchsia/linux.sdk.sha1

-bff6fe5e28d59bb99bad00f6c3d717b56e7d93e6
\ No newline at end of file
+9a796e9c3e778df5e4886380342b139188ba33be
\ No newline at end of file

build/fuchsia/mac.sdk.sha1

-76f2c22cd54f3530a5966ccec272b5258ac88f27
\ No newline at end of file
+e9fbfaa2c9272be20f4c6e95c3e865a59c0e8332
\ No newline at end of file