LCD: Added spin lock to circumvent cmdq timeout

	thd_usage = atomic_dec_return(&cmdq->thread[i].usage);

	if (!thd_usage && !list_empty(&cmdq->thread[i].task_busy_list)) {

		struct cmdq_task *task;

		unsigned long flags;

		cmdq_err("hwid:%u idx:%d usage:%d still has tasks",

			cmdq->hwid, i, thd_usage);

		dump_stack();

		spin_lock_irqsave(&thread->chan->lock, flags);

		list_for_each_entry(task, &thread->task_busy_list, list_entry)

			if(task->pkt) {

				cmdq_set_alldump(true);

				cmdq_dump_pkt(task->pkt, 0, true);

				cmdq_set_alldump(false);

			}

		spin_unlock_irqrestore(&thread->chan->lock, flags);

		cmdq_util_aee_ex(CMDQ_AEE_EXCEPTION, "CMDQ",

			"hwid:%hu usage:%d idx:%u usage:%d gce off",

			cmdq->hwid, atomic_read(&cmdq->usage),