Flip y coordinate on FNL as a workaround

sky/shell/gpu/ganesh_canvas.cc

@@ -52,7 +52,12 @@ SkCanvas* GaneshCanvas::GetCanvas(int32_t fbo, const SkISize& size) {
   desc.fWidth = size.width();
   desc.fHeight = size.height();
   desc.fConfig = kSkia8888_GrPixelConfig;
+#if defined(FNL_MUSL)
+  // TODO(kulakowski) This should be handled by MGL
+  desc.fOrigin = kTopLeft_GrSurfaceOrigin;
+#else
   desc.fOrigin = kBottomLeft_GrSurfaceOrigin;
+#endif
   desc.fRenderTargetHandle = fbo;
 
   skia::RefPtr<GrRenderTarget> target = skia::AdoptRef(