sim-reset-server: fix error printing sw_match_error

In the last line of the if,elif,else branch, when we print the ApiError
object, we pass the variable sw to str() instead passing it to
ApiError() like we do it in the lines above. This is not correct and
causes strange exceptions.

Related: OS#67094
Change-Id: I5a1d19abeb00c2c9dc26517abc44a5c916f2d658
diff --git a/contrib/sim-rest-server.py b/contrib/sim-rest-server.py
index 83fb377..fc8afd9 100755
--- a/contrib/sim-rest-server.py
+++ b/contrib/sim-rest-server.py
@@ -101,7 +101,7 @@
         elif sw == '6982':
             return str(ApiError("Security Status not satisfied - Card PIN enabled?", sw))
         else:
-            return str(ApiError("Card Communication Error %s" % failure.value), sw)
+            return str(ApiError("Card Communication Error %s" % failure.value, sw))
 
 
     @app.route('/sim-auth-api/v1/slot/<int:slot>')