pica_to_vk: Set cull mode correctly

src/video_core/renderer_vulkan/pica_to_vk.h

@@ -250,7 +250,7 @@ inline vk::CullModeFlags CullMode(Pica::RasterizerRegs::CullMode mode) {
         return vk::CullModeFlagBits::eNone;
     case Pica::RasterizerRegs::CullMode::KeepClockWise:
     case Pica::RasterizerRegs::CullMode::KeepCounterClockWise:
-        return vk::CullModeFlagBits::eNone;
+        return vk::CullModeFlagBits::eBack;
     }
 }
 

src/video_core/renderer_vulkan/renderer_vulkan.cpp

@@ -1046,8 +1046,7 @@ void RendererVulkan::SwapBuffers() {
     runtime.OnSlotSwitch(scheduler.GetCurrentSlotIndex());
 
     // When the command buffer switches, all state becomes undefined.
-    // This is problematic when using dynamic states, so set all
-    // states here
+    // This is problematic with dynamic states, so set all states here
     if (instance.IsExtendedDynamicStateSupported()) {
         rasterizer->SyncFixedState();
     }