Move frameworks/base/tools/ off AndroidConfig.h.

Change-Id: Ibc7abb67a56945a9618bc91ccdbebe4c806879a5
diff --git a/tools/aidl/search_path.cpp b/tools/aidl/search_path.cpp
index ffb6cb2..29dbe26 100644
--- a/tools/aidl/search_path.cpp
+++ b/tools/aidl/search_path.cpp
@@ -1,6 +1,7 @@
 #include <unistd.h>
 #include "search_path.h"
 #include "options.h"
+#include "os.h"
 #include <string.h>
 
 #ifdef HAVE_MS_C_RUNTIME