D3D11: Fix primitive topology dirty bit tracking.
D3D11: Fix primitive topology dirty bit tracking.

syncPrimitiveTopology checks the transform feedback state, so it needs
to be called whenever the transform feedback state changes. This fixes
flakes in the WebGL 2 conformance test
transform_feedback/simultaneous_binding.html

Bug: 696345
Change-Id: I4e17bbf60b4a387cc23dc55bd5a051f5da9fa66e
Reviewed-on: https://chromium-review.googlesource.com/1006489
Commit-Queue: James Darpinian <eafe431c9f653c5da1c61a994876a786dff6f290@chromium.org>
Commit-Queue: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>
Reviewed-by: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>

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