Revert "Get rid of IGraphicBufferAlloc"

This reverts commit 78491c9f694cb0767996503c629776a8eda950d7.

Change-Id: I78d5c0a30ab80265f697f681387872b6763b2d1e
diff --git a/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp b/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
index 92a7794..9a0e94e 100644
--- a/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
+++ b/services/surfaceflinger/DisplayHardware/FramebufferSurface.cpp
@@ -32,6 +32,7 @@
 #include <hardware/hardware.h>
 #include <gui/BufferItem.h>
 #include <gui/BufferQueue.h>
+#include <gui/GraphicBufferAlloc.h>
 #include <gui/Surface.h>
 
 #include <ui/GraphicBuffer.h>