The Vulkan physical device properties "deviceName" field does not
include "NVIDIA" for all NVIDIA GPUs. Add NVIDIA to the renderer name
in case the PCI vendor ID matches, so that Vulkan backend test
failures can be suppressed on NVIDIA using IsNVIDIA().

BUG=angleproject:2487

Change-Id: I8e440499664e5ba19773f72104d11d076dae727d
Reviewed-on: https://chromium-review.googlesource.com/1013467
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>