GraphicsEnv is separated from libui

GraphicsEnv class is separated from libui in order to make libui VNDK.
The class is then built as a standalone library named
'libgraphicsenv.so'. Clients that were using the GraphicsEnv class are
also updated to reference the new library.

Bug: 38097618
Test: sailfish builds and boots

Change-Id: I4c35fdff0e92453b98ea21136ef0f99fab01b6f8
diff --git a/opengl/libs/EGL/Loader.cpp b/opengl/libs/EGL/Loader.cpp
index 7d20ba1..1116400 100644
--- a/opengl/libs/EGL/Loader.cpp
+++ b/opengl/libs/EGL/Loader.cpp
@@ -28,7 +28,7 @@
 #include <cutils/properties.h>
 #include <log/log.h>
 
-#include <ui/GraphicsEnv.h>
+#include <graphicsenv/GraphicsEnv.h>
 
 #include "egl_trace.h"
 #include "egldefs.h"