UPSTREAM: binder: fix the missing BR_FROZEN_REPLY in binder_return_strings

Add BR_FROZEN_REPLY in binder_return_strings to support stat function.

Fixes: ae28c1be1e54 ("binder: BINDER_GET_FROZEN_INFO ioctl")
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Hang Lu <hangl@codeaurora.org>
Link: https://lore.kernel.org/r/1617961246-4502-2-git-send-email-hangl@codeaurora.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 005169157448ca41eff8716d79dc1b8f158229d2)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Ia1cd506ca4d2ed87e3d4d9697d836c5242eec0c2