feat: add test status handling to sysctrl and integrate with simulation framework

- Introduced test status signals (test_done_o, test_pass_o, test_code_o) in sysctrl interface and module.
- Updated memory map to include TEST_STATUS offset.
- Enhanced retrosoc_tb to monitor test completion and report results.
- Modified Emulator to handle test status and return appropriate exit codes.
- Updated formal verification to include assertions for test status.
- Added CoreMark log parsing script and integrated it into the regression tests.
- Implemented tests for test status handling in sysctrl_fault_tb.
- Adjusted simulation success and failure markers in various scripts and tests.
- Ensured compatibility with existing performance logging and regression testing frameworks.

tests/rtl/sysctrl_fault_tb.sv

@@ -143,6 +143,26 @@ module sysctrl_fault_tb;
       $fatal(1, "user core stop state was not recorded");
     end
 
+    read_register(32'h1000_B084, read_data);
+    if (read_data !== 32'h0000_0000) begin
+      $fatal(1, "test status did not reset");
+    end
+    write_register(32'h1000_B084, 32'h0000_5A01);
+    read_register(32'h1000_B084, read_data);
+    if (read_data !== 32'h0000_0000) begin
+      $fatal(1, "invalid test status write was accepted");
+    end
+    write_register(32'h1000_B084, 32'h8000_5A01);
+    read_register(32'h1000_B084, read_data);
+    if (read_data !== 32'h8000_5A01) begin
+      $fatal(1, "test pass status was not recorded");
+    end
+    write_register(32'h1000_B084, 32'h8000_0B00);
+    read_register(32'h1000_B084, read_data);
+    if (read_data !== 32'h8000_5A01) begin
+      $fatal(1, "terminal test status was overwritten");
+    end
+
     $display("sysctrl fault and user core control test passed");
     $finish;
   end