Fixed Vulkan validation error

VUID-VkPipelineRasterizationStateCreateInfo-depthClampEnable-00782(ERROR / SPEC): msgNum: -316906200 - Validation Error: [ VUID-VkPipelineRasterizationStateCreateInfo-depthClampEnable-00782 ] | MessageID = 0xed1c6528 | vkCreateGraphicsPipelines(): pCreateInfos[0].pRasterizationState->depthClampEnable is VK_TRUE, but the depthClamp feature was not enabled. The Vulkan spec states: If the depthClamp feature is not enabled, depthClampEnable must be VK_FALSE (https://vulkan.lunarg.com/doc/view/1.3.268.0/windows/1.3-extensions/vkspec.html#VUID-VkPipelineRasterizationStateCreateInfo-depthClampEnable-00782)

src/gpu/vulkan/SDL_gpu_vulkan.c

@@ -6384,7 +6384,11 @@ static SDL_GPUGraphicsPipeline *VULKAN_CreateGraphicsPipeline(
     rasterizationStateCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
     rasterizationStateCreateInfo.pNext = NULL;
     rasterizationStateCreateInfo.flags = 0;
-    rasterizationStateCreateInfo.depthClampEnable = !createinfo->rasterizer_state.enable_depth_clip;
+    if (renderer->desiredDeviceFeatures.depthClamp) {
+        rasterizationStateCreateInfo.depthClampEnable = !createinfo->rasterizer_state.enable_depth_clip;
+    } else {
+        rasterizationStateCreateInfo.depthClampEnable = VK_FALSE;
+    }
     rasterizationStateCreateInfo.rasterizerDiscardEnable = VK_FALSE;
     rasterizationStateCreateInfo.polygonMode = SDLToVK_PolygonMode(
         renderer,