qcacmn: Indicate ch avoid event even channel list is NULL

LTE coex works fine, then LTE signal disappear and no unsafe channel,
no channel avoid event indicate to up layer.

Change-Id: I3a3e65b849722408a3844437c75e73a7e62be83a
CRs-Fixed: 2240473

umac/regulatory/core/src/reg_services.c

@@ -4111,8 +4111,7 @@ static QDF_STATUS reg_process_ch_avoid_freq(struct wlan_objmgr_psoc *psoc,
 		psoc_priv_obj->unsafe_chan_list.ch_cnt);
 
 	if (!psoc_priv_obj->unsafe_chan_list.ch_cnt) {
-		reg_warn("No valid ch are present in avoid freq event");
-		psoc_priv_obj->ch_avoid_ind = false;
+		reg_debug("No valid ch are present in avoid freq event");
 		return QDF_STATUS_SUCCESS;
 	}