otafault: Move headers under otafault/.

Test: mmma bootable/recovery
Change-Id: I3ceb72f703c7c2857d656c137d71baa1fccd8238
diff --git a/updater/updater.cpp b/updater/updater.cpp
index 1d8fa8e..e10174f 100644
--- a/updater/updater.cpp
+++ b/updater/updater.cpp
@@ -30,8 +30,8 @@
 #include <selinux/selinux.h>
 #include <ziparchive/zip_archive.h>
 
-#include "config.h"
 #include "edify/expr.h"
+#include "otafault/config.h"
 #include "otautil/DirUtil.h"
 #include "otautil/SysUtil.h"
 #include "updater/blockimg.h"