drivers: wifi: nxp: add download countryinfo

When set 'wifi reg_domain' CMD, need to create and download countryinfo
to sync driver and FW for embedded supplicant case

Signed-off-by: Maochen Wang <maochen.wang@nxp.com>

Author: MaochenWang1

drivers/wifi/nxp/nxp_wifi_drv.c

@@ -1731,6 +1731,13 @@ static int nxp_wifi_reg_domain(const struct device *dev, struct wifi_reg_domain
 			LOG_ERR("Unable to set country code: %s", reg_domain->country_code);
 			return -EAGAIN;
 		}
+
+		ret = wlan_create_dnld_countryinfo();
+		if (ret != WM_SUCCESS) {
+			LOG_ERR("Unable to create and download countryinfo");
+			return -EAGAIN;
+		}
+
 	}
 	return 0;
 }