Add missing forward reference to KeGetInitializationBlock

xtoskrnl/includes/kei.h

@@ -13,6 +13,10 @@
 
 
 /* Kernel services routines forward references */
+XTAPI
+PKERNEL_INITIALIZATION_BLOCK
+KeGetInitializationBlock(VOID);
+
 XTAPI
 VOID
 KeClearEvent(IN PKEVENT Event);