Merge "graphics: early return in CommandWriterBase::writeQueue"

    bool writeQueue(bool* outQueueChanged, uint32_t* outCommandLength,

            hidl_vec<hidl_handle>* outCommandHandles)

    {

        if (mDataWritten == 0) {

            *outQueueChanged = false;

            *outCommandLength = 0;

            outCommandHandles->setToExternal(nullptr, 0);

            return true;

        }

        // After data are written to the queue, it may not be read by the

        // remote reader when

        //