Update workaround for devices with broken vkQueueWaitIdle.

This is essentially just changing how we do a workaround we
already have in the code. It also does it in release.

Change-Id: I53b6539beb3e919497f2a13f583108ec10f1b9af
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/368556
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
6 files changed