Fixed bug with white map

I'm not sure when it was introduced, probably in 8f6fd2a131.
It was showing errors like "Couldn't load texture 'map.png'" and "Invalid texture data"

src/graphics/engine/engine.cpp

@@ -2156,7 +2156,7 @@ Texture CEngine::CreateTexture(const std::string& texName, const TextureCreatePa
         image = &img;
     }
 
-    tex = m_device->CreateTexture(&img, params);
+    tex = m_device->CreateTexture(image, params);
 
     if (! tex.Valid())
     {