Fix various bugs

- Fix data race for some tests by disabling database recording
- Fix undefined behaviour in configuration test
- Port clkMhz to tCK for simulation script
- Port memUtil Python script to tCK with backwards compatibility

tests/tests_dramsys/b_transport/configs/no_storage.json

@@ -135,7 +135,7 @@
         "simconfig": {
             "AddressOffset": 0,
             "CheckTLM2Protocol": false,
-            "DatabaseRecording": true,
+            "DatabaseRecording": false,
             "Debug": false,
             "EnableWindowing": false,
             "PowerAnalysis": false,

tests/tests_dramsys/b_transport/configs/storage.json

@@ -133,7 +133,7 @@
         "simconfig": {
             "AddressOffset": 0,
             "CheckTLM2Protocol": false,
-            "DatabaseRecording": true,
+            "DatabaseRecording": false,
             "Debug": false,
             "EnableWindowing": false,
             "PowerAnalysis": false,