surfaceflinger: move EGL termination into RE

This defers EGL termination a bit but that should be fine.  More
importantly, SurfaceFlinger is never destructed.

Test: SurfaceFlinger_test
Change-Id: I200e2169eb1cc419a587a7626b438d3d5ddedc70
diff --git a/services/surfaceflinger/RenderEngine/RenderEngine.cpp b/services/surfaceflinger/RenderEngine/RenderEngine.cpp
index 9f94e13..ac646ac 100644
--- a/services/surfaceflinger/RenderEngine/RenderEngine.cpp
+++ b/services/surfaceflinger/RenderEngine/RenderEngine.cpp
@@ -165,6 +165,8 @@
 }
 
 RenderEngine::~RenderEngine() {
+    eglMakeCurrent(mEGLDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+    eglTerminate(mEGLDisplay);
 }
 
 void RenderEngine::setEGLHandles(EGLDisplay display, EGLConfig config, EGLContext ctxt) {