Roll Fuchsia SDK from c9062b32e733 to bf4956e56f91

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

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_audio;luci.chromium.try:fuchsia_x64_cast_audio
TBR=cr-fuchsia+bot@chromium.org

Change-Id: I241fd842df3fbe4eb135965159b4ecd3c6cd0bcd
Reviewed-on: https://chromium-review.googlesource.com/1117934
Commit-Queue: Fuchsia SDK Autoroller <fuchsia-sdk-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Reviewed-by: Fuchsia SDK Autoroller <fuchsia-sdk-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#571037}

build/fuchsia/sdk.sha1

-c9062b32e73367501402b8c650778e52912eb33b
\ No newline at end of file
+bf4956e56f91b6c3696518647881d28626c51984
\ No newline at end of file