[topgen] Assign specified default to un-exposed parameters in top

With this commit, topgen drives un-exposed parameters with the default
value specified in the IP hjson, but still does not expose those
parameters to higher levels in the hierarchy.

Signed-off-by: Pirmin Vogel <vogelpi@lowrisc.org>
diff --git a/hw/top_earlgrey/data/autogen/top_earlgrey.gen.hjson b/hw/top_earlgrey/data/autogen/top_earlgrey.gen.hjson
index ffd60f5..14510be 100644
--- a/hw/top_earlgrey/data/autogen/top_earlgrey.gen.hjson
+++ b/hw/top_earlgrey/data/autogen/top_earlgrey.gen.hjson
@@ -923,6 +923,14 @@
       param_list:
       [
         {
+          name: AES192Enable
+          type: bit
+          default: 1'b1
+          local: "false"
+          expose: "false"
+          name_top: AesAES192Enable
+        }
+        {
           name: Masking
           type: bit
           default: 1'b0
@@ -946,6 +954,14 @@
           expose: "true"
           name_top: SecAesStartTriggerDelay
         }
+        {
+          name: AlertAsyncOn
+          type: logic [aes_reg_pkg::NumAlerts-1:0]
+          default: "{aes_reg_pkg::NumAlerts{1'b1}}"
+          local: "false"
+          expose: "false"
+          name_top: AesAlertAsyncOn
+        }
       ]
       interrupt_list: []
       alert_list: