[NTOSKRNL:CC] Calculate Dirty Pages like NT5

NTOSKRNL/CC/cclazywriter.cpp

@@ -1373,8 +1373,8 @@ CcAdjustWriteBehindThreadPoolIfNeeded(
         }
     }
     else
-    {
-        if (CcGlobalDirtyPageStatistics.DirtyPages > 0x2000 || NeedAdjustment)
+    {   auto DirtyPages = (CcTotalDirtyPages + CcPagesWrittenLastTime);
+        if (DirtyPages > 0x2000 || NeedAdjustment)
         {
             if (CcIsWriteBehindThreadpoolAtLowPriority())
             {