[topgen] Use the number of alerts and not alert modules

Previously, the numner of alert modules was used to determine the
number of outoging alerts. That's wrong. If a device has more than
one alert, the number of alert modules and the actual number alerts
diverges.

This PR fixes that.

Signed-off-by: Robert Schilling <[email protected]>

util/topgen/templates/toplevel_pkg.sv.tpl

@@ -65,7 +65,7 @@ package top_${top["name"]}_pkg;
 % for alert_group, alert_modules in top["outgoing_alert_module"].items():
 
   // Number of ${alert_group} outgoing alerts
-  parameter int unsigned NOutgoingAlerts${alert_group.capitalize()} = ${len(alert_modules)};
+  parameter int unsigned NOutgoingAlerts${alert_group.capitalize()} = ${len(top['outgoing_alert'][alert_group])};
 
   // Number of LPGs for outgoing alert group ${alert_group}
   parameter int unsigned NOutgoingLpgs${alert_group.capitalize()} = ${len(top["outgoing_alert_lpgs"][alert_group])};