Temporarily allow unsupported structures in PhysicalDevice::getFeatures2()

A dEQP-Vk update added some unsupported enums to the pNext chain
provided to vkGetPhysicalDeviceFeatures2(), which causes all tests
to be declared unsupported.

This CL temporarily replaces it by a warning in order to makes the
tests pass again.

Bug: b/216982034
Change-Id: Id19d77a44b9ee494fe0dec367bdbe8fc1c937c3f
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/67389
Commit-Queue: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

src/Vulkan/VkPhysicalDevice.cpp

diff --git a/src/Vulkan/VkPhysicalDevice.cpp b/src/Vulkan/VkPhysicalDevice.cpp
index dd648b4..fc5d601 100644
--- a/src/Vulkan/VkPhysicalDevice.cpp
+++ b/src/Vulkan/VkPhysicalDevice.cpp
@@ -590,7 +590,8 @@
 		case VK_STRUCTURE_TYPE_MAX_ENUM:  // TODO(b/176893525): This may not be legal. dEQP tests that this value is ignored.
 			break;
 		default:
-			UNSUPPORTED("curExtension->sType: %s", vk::Stringify(curExtension->sType).c_str());
+			// TODO(b/216982034): Revert to UNSUPPORTED() when https://gitlab.khronos.org/Tracker/vk-gl-cts/-/issues/3879 is fixed.
+			WARN("curExtension->sType: %s", vk::Stringify(curExtension->sType).c_str());
 			break;
 		}
 		curExtension = reinterpret_cast<VkBaseOutStructure *>(curExtension->pNext);