Fix oatdump to use OatHeader pointer size

Bug: 18473190
Change-Id: If505b4f62105899f4f1257d3bccda3e6eb0dcd7c

(cherry picked from commit c934e483ceabbd589422beea1fa35f5182ecfa99)
diff --git a/runtime/entrypoints/quick/quick_instrumentation_entrypoints.cc b/runtime/entrypoints/quick/quick_instrumentation_entrypoints.cc
index d5493bd..54dbd8c 100644
--- a/runtime/entrypoints/quick/quick_instrumentation_entrypoints.cc
+++ b/runtime/entrypoints/quick/quick_instrumentation_entrypoints.cc
@@ -35,7 +35,7 @@
   if (instrumentation->IsDeoptimized(method)) {
     result = GetQuickToInterpreterBridge();
   } else {
-    result = instrumentation->GetQuickCodeFor(method);
+    result = instrumentation->GetQuickCodeFor(method, sizeof(void*));
     DCHECK(!Runtime::Current()->GetClassLinker()->IsQuickToInterpreterBridge(result));
   }
   bool interpreter_entry = (result == GetQuickToInterpreterBridge());