3371da1e0 Add platform_fuchsia.cc for default font on fuchsia (flutter/engine#9204) (#33953)

https://github.com/flutter/engine/compare/782654846230...3371da1e0951

git log 78265484623037c6544dfd5380367bca29fa27b0..3371da1e09511cb047c746e8209ec91550714b05 --no-merges --oneline
3371da1e0 Add platform_fuchsia.cc for default font on fuchsia (flutter/engine#9204)

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bin/internal/engine.version

-78265484623037c6544dfd5380367bca29fa27b0
+3371da1e09511cb047c746e8209ec91550714b05