Update the viewport when the scissor offset is changed

Fixes a bug with Another Code: R that was noticed when gx-optimization was
merged.

Source/Core/VideoCommon/Src/BPFunctions.cpp

@@ -62,6 +62,8 @@ void SetScissor()
 
 	TargetRectangle trc = g_renderer->ConvertEFBRectangle(rc);
 	g_renderer->SetScissorRect(trc);
+
+	UpdateViewportWithCorrection();
 }
 
 void SetLineWidth()

Source/Core/VideoCommon/Src/VertexShaderManager.cpp

@@ -51,6 +51,11 @@ static float s_fViewRotation[2];
 
 void UpdateViewport(Matrix44& vpCorrection);
 
+void UpdateViewportWithCorrection()
+{
+	UpdateViewport(s_viewportCorrection);
+}
+
 inline void SetVSConstant4f(unsigned int const_number, float f1, float f2, float f3, float f4)
 {
 	g_renderer->SetVSConstant4f(const_number, f1, f2, f3, f4);

Source/Core/VideoCommon/Src/VertexShaderManager.h

@@ -33,6 +33,8 @@ struct ProjectionHack
 
 void UpdateProjectionHack(int iParams[], std::string sParams[]);
 
+void UpdateViewportWithCorrection();
+
 // The non-API dependent parts.
 class VertexShaderManager
 {