[roll] Roll boards-emac-clang-cipd packages to git_revision:388d7f144880dcd85ff31f06793304405a9f44b6

fuchsia/third_party/clang/linux-amd64  new:https://chrome-infra-packages.appspot.com/p/fuchsia/third_party/clang/linux-amd64/+/git_revision:388d7f144880dcd85ff31f06793304405a9f44b6
fuchsia/third_party/clang/linux-arm64  new:https://chrome-infra-packages.appspot.com/p/fuchsia/third_party/clang/linux-arm64/+/git_revision:388d7f144880dcd85ff31f06793304405a9f44b6

From: None
To: git_revision:388d7f144880dcd85ff31f06793304405a9f44b6

Roller-URL: https://cr-buildbucket.appspot.com/build/8728183952955495441
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I63c060a4b8321a4fdd074a3b29b803a6172e3371
Reviewed-on: https://fuchsia-review.googlesource.com/c/boards/emac/+/1176584
Commit-Queue: GI Roller <global-integration-roller@fuchsia-infra.iam.gserviceaccount.com>