Move ArrayRef to runtime/base

Will be used in upcoming CLs regarding VDEX and VerifierDeps.

Test: m test-art-host
Change-Id: I68e611a4a52246c2bdf45eab7c61f3212908afd4
diff --git a/compiler/driver/compiled_method_storage.h b/compiler/driver/compiled_method_storage.h
index 8674abf..124b5a6 100644
--- a/compiler/driver/compiled_method_storage.h
+++ b/compiler/driver/compiled_method_storage.h
@@ -20,9 +20,9 @@
 #include <iosfwd>
 #include <memory>
 
+#include "base/array_ref.h"
 #include "base/length_prefixed_array.h"
 #include "base/macros.h"
-#include "utils/array_ref.h"
 #include "utils/dedupe_set.h"
 #include "utils/swap_space.h"