asoc:msm-lsm-client: potential deadlock fix

After acquiring spinlock, if memory allocation fails, the spinlock is
not released, thus inducing a potential deadlock.

Change-Id: I8d390437a00b8a9ca2cb216f47434a0448506e1f
Signed-off-by: ftong <quic_ftong@quicinc.com>

asoc/msm-lsm-client.c

@@ -412,6 +412,7 @@ static void lsm_event_handler(uint32_t opcode, uint32_t token,
 		if (!temp) {
 			dev_err(rtd->dev, "%s: no memory for event status\n",
 				__func__);
+			spin_unlock_irqrestore(&prtd->event_lock, flags);
 			__pm_relax(prtd->ws);
 			return;
 		}