systemc: Change the default "catch action" to SC_DISPLAY.

There is a test which checks what it was and asserts if it's something
else.

Change-Id: I114c0a38c9fa69544416a4d1b555bb87e6246efd
Reviewed-on: https://gem5-review.googlesource.com/c/13306
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
diff --git a/src/systemc/utils/sc_report_handler.cc b/src/systemc/utils/sc_report_handler.cc
index 1ca9d97..41bf8e8 100644
--- a/src/systemc/utils/sc_report_handler.cc
+++ b/src/systemc/utils/sc_report_handler.cc
@@ -92,7 +92,7 @@
 
 sc_actions suppressedActions = SC_UNSPECIFIED;
 sc_actions forcedActions = SC_UNSPECIFIED;
-sc_actions catchActions = SC_UNSPECIFIED;
+sc_actions catchActions = SC_DISPLAY;
 
 sc_report_handler_proc reportHandlerProc = &sc_report_handler::default_handler;