Revert "Revert "Split out libhidl-gen and libhidl-gen-utils.""

Shared code between hidl-gen, c2hal, and VTS.

Also build for device, as we might use libhidl-gen reflectively in
future (for profiling and instrumentation).

Change-Id: Ia56901f4afbc12b7c2abee693e0ebea97ba76a8b
diff --git a/ScalarType.cpp b/ScalarType.cpp
index eabe86a..96e27c4 100644
--- a/ScalarType.cpp
+++ b/ScalarType.cpp
@@ -16,7 +16,7 @@
 
 #include "ScalarType.h"
 
-#include "Formatter.h"
+#include <hidl-util/Formatter.h>
 
 namespace android {