Fix IllegalStateException in KeyboardBaclightController

IListener object changes in the binder transaction so need to compare
object as binder object instead otherwise will always mismatch and
throw exception.

Test: manual
Bug: 274132086
Change-Id: I265632151e0e877fff88ebd9b5a27cdef7b93b9c

services/core/java/com/android/server/input/KeyboardBacklightController.java

@@ -344,7 +344,7 @@ final class KeyboardBacklightController implements
                 throw new IllegalStateException("The calling process has no registered "
                         + "KeyboardBacklightListener.");
             }
-            if (record.mListener != listener) {
+            if (record.mListener.asBinder() != listener.asBinder()) {
                 throw new IllegalStateException("The calling process has a different registered "
                         + "KeyboardBacklightListener.");
             }