[NTOS:KD] Remove some _WINDK_ usages

- Always include kd64.h
- Change KdpPrompt() prototype to be compatible between KDBG and _WINDK_
- Rename KdComponentTable to KdpComponentTable to prevent a conflict
- Add some functions stubs and global variables

ntoskrnl/ps/psmgr.c

@@ -383,10 +383,8 @@ PspInitializeSystemDll(VOID)
         KeBugCheckEx(PROCESS1_INITIALIZATION_FAILED, Status, 8, 0, 0);
     }
 
-#ifdef _WINKD_
     /* Let KD know we are done */
     KdUpdateDataBlock();
-#endif
 
     /* Return status */
     return Status;