Disable vertex ID support on SwiftShader

Once this is fixed we can hopefully check the version number before
disabling.

Bug: skia:11965
Bug: b/188239650
Change-Id: Idc29058e23c6e1750555165ba57b695a7cc0f925
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/409338
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
2 files changed