ntoskrnl.exe: Import KeGetCurrentProcessorNumber() function.

dlls/ntoskrnl.exe/ntoskrnl.exe.spec

@@ -546,6 +546,7 @@
 @ stub KeFindConfigurationNextEntry
 @ stub KeFlushEntireTb
 @ stdcall KeFlushQueuedDpcs()
+@ stdcall KeGetCurrentProcessorNumber() NtGetCurrentProcessorNumber
 @ stdcall KeGetCurrentThread()
 @ stub KeGetPreviousMode
 @ stub KeGetRecommendedSharedDataAlignment

include/ddk/wdm.h

@@ -1686,6 +1686,7 @@ BOOLEAN   WINAPI KeCancelTimer(KTIMER*);
 void      WINAPI KeClearEvent(PRKEVENT);
 NTSTATUS  WINAPI KeDelayExecutionThread(KPROCESSOR_MODE,BOOLEAN,LARGE_INTEGER*);
 void      WINAPI KeEnterCriticalRegion(void);
+ULONG     WINAPI KeGetCurrentProcessorNumber(void);
 PKTHREAD  WINAPI KeGetCurrentThread(void);
 void      WINAPI KeInitializeEvent(PRKEVENT,EVENT_TYPE,BOOLEAN);
 void      WINAPI KeInitializeMutex(PRKMUTEX,ULONG);