D3D11: Ensure that clip depth mode is synced Syncing clip depth mode driver uniform should not depend on a viewport state. Bug: angleproject:6554 Change-Id: I6ff2549a88fe3795eef20acfc48d0e945f19c4e0 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4775599 Commit-Queue: Alexey Knyazev <lexa.knyazev@gmail.com> Reviewed-by: Kenneth Russell <kbr@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>