kernel: implement KProcess suspension

src/core/core.h

@@ -163,8 +163,8 @@ public:
     /// Forcibly detach the debugger if it is running.
     void DetachDebugger();
 
-    std::unique_lock<std::mutex> StallCPU();
-    void UnstallCPU();
+    std::unique_lock<std::mutex> StallProcesses();
+    void UnstallProcesses();
 
     /**
      * Initialize the debugger.