fix build: SurfaceTextureClient to Surface rename

Change-Id: Ibcf98337940f9195bcff7b5e8bddb6e912e65163
diff --git a/cmds/flatland/Main.cpp b/cmds/flatland/Main.cpp
index a65052e..99715d3 100644
--- a/cmds/flatland/Main.cpp
+++ b/cmds/flatland/Main.cpp
@@ -18,6 +18,7 @@
 
 #include <gui/GraphicBufferAlloc.h>
 #include <gui/Surface.h>
+#include <gui/SurfaceControl.h>
 #include <gui/GLConsumer.h>
 #include <gui/Surface.h>
 #include <ui/Fence.h>