[vulkan] Fix TOTK dark squares

Qualcomm and Turnip use different subpixel rounding for Vulkan texture
gather coordinates than the Switch's Maxwell GPU. This can select the
wrong texels near texture boundaries, producing large black squares in TOTK

src/video_core/renderer_vulkan/vk_pipeline_cache.cpp

@@ -447,7 +447,9 @@ PipelineCache::PipelineCache(Tegra::MaxwellDeviceMemoryManager& device_memory_,
                                        driver_id == VK_DRIVER_ID_AMD_OPEN_SOURCE ||
                                        driver_id == VK_DRIVER_ID_MESA_RADV ||
                                        driver_id == VK_DRIVER_ID_INTEL_PROPRIETARY_WINDOWS ||
-                                       driver_id == VK_DRIVER_ID_INTEL_OPEN_SOURCE_MESA,
+                                       driver_id == VK_DRIVER_ID_INTEL_OPEN_SOURCE_MESA ||
+                                       driver_id == VK_DRIVER_ID_QUALCOMM_PROPRIETARY ||
+                                       driver_id == VK_DRIVER_ID_MESA_TURNIP,
 
         .has_broken_spirv_clamp = driver_id == VK_DRIVER_ID_INTEL_PROPRIETARY_WINDOWS,
         .has_broken_spirv_position_input = driver_id == VK_DRIVER_ID_QUALCOMM_PROPRIETARY,

src/video_core/renderer_vulkan/vk_rasterizer.cpp

@@ -82,12 +82,7 @@ VkViewport GetViewportState(const Device& device, const Maxwell& regs, size_t in
 
     if (lower_left) {
         // Flip by surface clip height
-        const float clip_height = conv(static_cast<f32>(regs.surface_clip.height));
-        if (src.scale_y < 0.0f && y >= clip_height) {
-            y = clip_height - y;
-        } else {
-            y += clip_height;
-        }
+        y += conv(static_cast<f32>(regs.surface_clip.height));
         height = -height;
     }