Roll Fuchsia SDK from 4538a17f3a02 to dcd8c3f6050e

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: Ib317cffef2c44e2fa29cca1f8a62664e4c90b7c8
Reviewed-on: https://chromium-review.googlesource.com/1054260Reviewed-by: Fuchsia SDK Autoroller <fuchsia-sdk-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Commit-Queue: Fuchsia SDK Autoroller <fuchsia-sdk-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#557621}

build/fuchsia/sdk.sha1

-4538a17f3a0240b4fb27b809239f03c6d4184431
+dcd8c3f6050ecca8c59ff841203587e903c115ea
\ No newline at end of file