Adds OWNERS to com.androd.internal.util.Dump*

Test: no, thanks
Bug: 149254050

Change-Id: I1dbb8a4c04817f39de147927c26c14e461eb564b

core/java/com/android/internal/util/OWNERS

@@ -4,3 +4,4 @@ per-file *Notification* = file:/services/core/java/com/android/server/notificati
 per-file *ContrastColor* = file:/services/core/java/com/android/server/notification/OWNERS
 per-file Protocol* = etancohen@google.com, lorenzo@google.com
 per-file State* = jchalard@google.com, lorenzo@google.com, satk@google.com
+per-file *Dump* = file:/core/java/com/android/internal/util/dump/OWNERS