FEXQConfig: Add strict split-lock option

This was missed in the initial FEXQConfig implementation since it was
implemented at the same time.

Source/Tools/FEXQonfig/main.qml

@@ -618,6 +618,12 @@ ApplicationWindow {
                             onToggled: tsoButtonGroup.onClickedButton(2)
                         }
                     }
+
+                    ConfigCheckBox {
+                        text: qsTr("Strict in-process split-lock atomics")
+                        tooltip: qsTr("Enables non-tearing split-lock atomics")
+                        config: "StrictInProcessSplitLocks"
+                    }
                 }
             }