am d237cbac: Merge "Prevent crashing when disabling MCU during dream wakeup" into klp-modular-dev

            try {

                synchronized (mMcuHal) {

                    if (mReleased) {

                        throw new IllegalStateException("This operation cannot be performed "

                                + "because the dream has ended.");

                        Slog.w(TAG, "Ignoring message to MCU HAL because the dream "

                                + "has already ended: " + msg);

                        return null;

                    }

                    return mMcuHal.sendMessage(msg, arg);

                }