qcacld-3.0: Reduce log level to debug for scan & connect

Reduce the log level for some of the scan & connect related logs from
info to debug.

Change-Id: I19c41af47137cf1951834b31c47c73d6d5f4937e
CRs-Fixed: 2252968

core/hdd/src/wlan_hdd_main.c

@@ -13405,7 +13405,7 @@ bool hdd_is_connection_in_progress(uint8_t *session_id,
 	}
 
 	hdd_for_each_adapter(hdd_ctx, adapter) {
-		hdd_info("Adapter with device mode %s(%d) exists",
+		hdd_debug("Adapter with device mode %s(%d) exists",
 			hdd_device_mode_to_string(adapter->device_mode),
 			adapter->device_mode);
 		if (((QDF_STA_MODE == adapter->device_mode)

core/hdd/src/wlan_hdd_stats.c

@@ -4655,7 +4655,7 @@ static int __wlan_hdd_cfg80211_dump_survey(struct wiphy *wiphy,
 		return status;
 
 	if (hdd_ctx->chan_info == NULL) {
-		hdd_err("chan_info is NULL");
+		hdd_debug("chan_info is NULL");
 		return -EINVAL;
 	}