When using queries with multiview, Vulkan specifies that N queries are
actually produced (N being the number of views) which must be summed by
the application.

Bug: angleproject:6048
Change-Id: I5ea615536f1a357806b7ea8093280b9122f1d66a
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2971562
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Charlie Lao <cclao@google.com>