Set OpenGL PixelPackBuffer to 0 when done (#4921)

src/Ryujinx.Graphics.OpenGL/Image/TextureView.cs

@@ -306,6 +306,8 @@ namespace Ryujinx.Graphics.OpenGL.Image
             int offset = WriteToPbo2D(range.Offset, layer, level);
 
             Debug.Assert(offset == 0);
+
+            GL.BindBuffer(BufferTarget.PixelPackBuffer, 0);
         }
 
         public void WriteToPbo(int offset, bool forceBgra)

src/Ryujinx.Graphics.OpenGL/Window.cs

@@ -93,7 +93,7 @@ namespace Ryujinx.Graphics.OpenGL
                     oldView.Dispose();
                 }
             }
-            
+
             GL.BindFramebuffer(FramebufferTarget.DrawFramebuffer, drawFramebuffer);
             GL.BindFramebuffer(FramebufferTarget.ReadFramebuffer, readFramebuffer);