move opengl/include/EGL/android_natives.h to include/ui/egl/android_natives.h and don't include it from egl.h

the android_native_ types are just forward declared in egl.h
diff --git a/libs/ui/ISurface.cpp b/libs/ui/ISurface.cpp
index fcea8ec..ec922d0 100644
--- a/libs/ui/ISurface.cpp
+++ b/libs/ui/ISurface.cpp
@@ -27,6 +27,7 @@
 #include <ui/Overlay.h>
 #include <ui/Surface.h>
 
+#include <private/ui/SurfaceBuffer.h>
 
 namespace android {