Add RtlAnsiCharToUnicodeChar definition.
Correct stub status of RtlAnsiCharToUnicodeChar.

diff --git a/include/winternl.h b/include/winternl.h
index c8740d6..aefa336 100644
--- a/include/winternl.h
+++ b/include/winternl.h
@@ -1617,6 +1617,7 @@
 NTSTATUS  WINAPI RtlAllocateAndInitializeSid(PSID_IDENTIFIER_AUTHORITY,BYTE,DWORD,DWORD,DWORD,DWORD,DWORD,DWORD,DWORD,DWORD,PSID *);
 RTL_HANDLE * WINAPI RtlAllocateHandle(RTL_HANDLE_TABLE *,ULONG *);
 PVOID     WINAPI RtlAllocateHeap(HANDLE,ULONG,ULONG);
+WCHAR     WINAPI RtlAnsiCharToUnicodeChar(LPSTR *);
 DWORD     WINAPI RtlAnsiStringToUnicodeSize(const STRING *);
 NTSTATUS  WINAPI RtlAnsiStringToUnicodeString(PUNICODE_STRING,PCANSI_STRING,BOOLEAN);
 NTSTATUS  WINAPI RtlAppendAsciizToString(STRING *,LPCSTR);