Fixed a typo

Author: rabieifk

hdlagent/agent.py

@@ -951,7 +951,7 @@ def get_verilog_file_name(original_file_name):
             return file_name_str.replace('.scala', '.v')
         elif '.pyrtl' in file_name_str:
             return file_name_str.replace('.pyrtl', '.v')
-        elif '.dslx' in file_name_str:
+        elif '.x' in file_name_str:
             return file_name_str.replace('.dslx', '.v')
         else:
             return file_name_str