Fix read_uhdm frontend

extra_args is neccessary for read_uhdm frontend as it sets filename

Signed-off-by: Kamil Rakoczy <krakoczy@antmicro.com>

systemverilog-plugin/uhdmcommonfrontend.cc

diff --git a/systemverilog-plugin/uhdmcommonfrontend.cc b/systemverilog-plugin/uhdmcommonfrontend.cc
index 53214c5..d12a9c3 100644
--- a/systemverilog-plugin/uhdmcommonfrontend.cc
+++ b/systemverilog-plugin/uhdmcommonfrontend.cc
@@ -112,6 +112,7 @@
             unhandled_args.push_back(args[i]);
         }
     }
+    extra_args(f, filename, args, args.size() - 1);
     // pass only unhandled args to Surelog
     // unhandled args starts with command name,
     // but Surelog expects args[0] to be program name