qcacmn: Log timer callback info

If qdf timer is already running and a module calls it again, log the
timer callback info to see why that module is calling it again.

Change-Id: I47e9d33a2a144a0a779f71b50dbabea227c4b362
CRs-Fixed: 2546070

qdf/linux/src/qdf_mc_timer.c

@@ -670,8 +670,8 @@ QDF_STATUS qdf_mc_timer_start(qdf_mc_timer_t *timer, uint32_t expiration_time)
 	if (QDF_TIMER_STATE_STOPPED != timer->state) {
 		qdf_spin_unlock_irqrestore(&timer->platform_info.spinlock);
 		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "%s: Cannot start timer in state = %d ", __func__,
-			  timer->state);
+			  "%s: Cannot start timer in state = %d %ps",
+			  __func__, timer->state, (void *)timer->callback);
 		return QDF_STATUS_E_ALREADY;
 	}