[NTOSKRNL:CC] CcSetDirtyPinnedData :: use reconstructed OBCB Structure

Their no PBCB anymore, since we reconstructed it by looking at _OBCB  which is reconstructed from CcAllocateObcb, 
we know that bcb array is array of PCC_BCB structure, thus modified CcSetDirtyPinnedData to use OBCB instead

NTOSKRNL/CC/ccpinsupport.cpp

@@ -125,12 +125,12 @@ CcMapDataForOverwrite(
 VOID
 NTAPI
 CcSetDirtyPinnedData(
-    IN PBCB BcbVoid,
+    IN POBCB BcbVoid,
     IN PLARGE_INTEGER Lsn OPTIONAL)
 {
     PSHARED_CACHE_MAP SharedCacheMap;
-    PBCB Bcb;
-    PBCB* BcbArray;
+    PCC_BCB Bcb;
+    PCC_BCB* BcbArray;
     PFAST_MUTEX Mutex;
     KIRQL OldIrql;
     ULONG PagesToWrite;
@@ -139,7 +139,7 @@ CcSetDirtyPinnedData(
     
     if (BcbVoid->NodeTypeCode == 762)
     {
-        BcbArray = (ULONG_PTR)BcbVoid-Bcbs;
+        BcbArray = reinterpret_cast<PCC_BCB>(BcbVoid->Bcbs);
     }
 
     SharedCacheMap = (*BcbArray)->SharedCacheMap;