Move libvulkan to a data_dep as we no longer statically
link it.

Bug: angleproject:4225
Change-Id: I96458d4727d2d47d8c259ec51d91fd852067c059
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1972192
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>