Fix multiple inclusion guards to match new pathnames

Change-Id: Id7735be1d75bc315733b1773fba45c1deb8ace43
diff --git a/runtime/jdwp/object_registry.h b/runtime/jdwp/object_registry.h
index d0ea59d..345f0ad 100644
--- a/runtime/jdwp/object_registry.h
+++ b/runtime/jdwp/object_registry.h
@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+#ifndef ART_RUNTIME_JDWP_OBJECT_REGISTRY_H_
+#define ART_RUNTIME_JDWP_OBJECT_REGISTRY_H_
+
 #include <stdint.h>
 
 #include <map>
@@ -98,3 +101,5 @@
 };
 
 }  // namespace art
+
+#endif  // ART_RUNTIME_JDWP_OBJECT_REGISTRY_H_