[fuchsia] Fix fidlc command.
[fuchsia] Fix fidlc command.

Change-Id: I8d3d04a20f8a696dd9d4d0c6f2808155fb7da5b4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/295469
Reviewed-by: John Rosasco <14868e44194333765c84ed78486aa6809fc4e8f1@google.com>
Commit-Queue: John Rosasco <14868e44194333765c84ed78486aa6809fc4e8f1@google.com>

google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia