Make sure EFB2RAM buffer is wide enough for new coordinate system.

Source/Core/VideoBackends/OGL/TextureConverter.cpp

@@ -35,7 +35,7 @@ static GLuint s_texConvFrameBuffer[2] = {0,0};
 static GLuint s_srcTexture = 0; // for decoding from RAM
 static GLuint s_dstTexture = 0; // for encoding to RAM
 
-const int renderBufferWidth = 1024;
+const int renderBufferWidth = EFB_WIDTH * 4;
 const int renderBufferHeight = 1024;
 
 static SHADER s_rgbToYuyvProgram;