Roll Fuchsia SDK from 644d5b59c068 to 4a56f4ef93ff

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Change-Id: Iec48d1280b82ad4766fb055bc3829b9ff8fea9c0
Reviewed-by: chromium-autoroll <>
Commit-Queue: chromium-autoroll <>
Cr-Commit-Position: refs/heads/master@{#641218}
2 files changed