Vulkan: Fix barriers between render passes Color attachment output ordering applies to commands recorded within a render pass subpass. We still need execution barriers between render passes (and subpasses, but we don't use them). Bug: angleproject:3347 Change-Id: Ifaddaeac35347d8a35e771f46a29047d52c9541c Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1713085 Reviewed-by: Fei Yang <fei.yang@arm.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>