Roll Fuchsia SDK from 7524a90f78ba to 138f39e8ec63

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: I91b1172aaa09d35ae2e2500c374bec1ade9dccea
Reviewed-on: https://chromium-review.googlesource.com/1143130
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@{#576448}

build/fuchsia/sdk.sha1

-7524a90f78ba1ba27c4b9ab38c3bf418afd210ef
+138f39e8ec632173fa8d82466242bf36032cdcce
\ No newline at end of file