Roll Fuchsia SDK from 11c520cd3508 to 0b4f8a4df79d

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: I34e943d86e3f6c3381bbfc83ca6c43e476310696
Reviewed-on: https://chromium-review.googlesource.com/c/1495789Reviewed-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@{#636787}

build/fuchsia/linux.sdk.sha1

-11c520cd3508700830004d5e8d4be6c282245224
+0b4f8a4df79dc1c25ebbc279f1cc7354e5821885
\ No newline at end of file

build/fuchsia/mac.sdk.sha1

-6a217242dc24624277f2df2578f1dd0b8616ab11
+205c25a858a3157152e95d900449501e53dd8e70
\ No newline at end of file