[Fuchsia] Add FIDL HLCPP tables.c file to the build

This file is empty now, but we will migrate the fidlc coding tables to
it. See https://fxrev.dev/953989 for the full soft transition plan.

Bug: https://fxbug.dev/39388
Change-Id: Ie169d6cdc8abb1c175aa5400fd42d74b20774e96
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/787956
Auto-Submit: Mitchell Kember <mkember@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
1 file changed