Fix function prototypes using fastcall and stdcall calling convensions

xtoskrnl/includes/hl.h

@@ -42,7 +42,7 @@ HlDrawPixel(IN ULONG PosX,
 
 XTFASTCALL
 KRUNLEVEL
-HlGetRunLevel();
+HlGetRunLevel(VOID);
 
 
 XTCDECL

xtoskrnl/includes/ke.h

@@ -19,11 +19,11 @@ KeClearEvent(IN PKEVENT Event);
 
 XTFASTCALL
 KRUNLEVEL
-KeGetCurrentRunLevel();
+KeGetCurrentRunLevel(VOID);
 
 XTAPI
 VOID
-KeHaltSystem();
+KeHaltSystem(VOID);
 
 XTAPI
 VOID