Move fdtrack APIs to LLNDK.

Test: logcat -c; fdtrack_test; logcat -d
Change-Id: Ib6f75a7c8bbc4d6efa0708dcbbfe4ad3c0641022
diff --git a/tests/fdtrack_test.cpp b/tests/fdtrack_test.cpp
index a616e6f..fca92ce 100644
--- a/tests/fdtrack_test.cpp
+++ b/tests/fdtrack_test.cpp
@@ -25,7 +25,7 @@
 #include <unistd.h>
 
 #if defined(__BIONIC__)
-#include <android/fdtrack.h>
+#include "platform/bionic/fdtrack.h"
 #endif
 
 #include <vector>