[racl,raclgen] Unify raclgen template across earlgrey and darjeeling

Signed-off-by: David Schrammel <[email protected]>

Author: davidschrammel

hw/top_darjeeling/templates/toplevel.sv.tpl

@@ -494,7 +494,7 @@ max_intrwidth = (max(len(x.name) for x in block.interrupts)
         hw/top_earlgrey/templates/toplevel.sv.tpl
         hw/top_englishbreakfast/templates/toplevel.sv.tpl
 </%doc>\
-  % if 'racl_mappings' in m:
+  % if m.get('racl_mappings'):
     .EnableRacl(1'b1),
     .RaclErrorRsp(${"1'b1" if top['racl']['error_response'] else "1'b0"}),
     % for if_name in m['racl_mappings'].keys():