wow64win: Add missing thunk for NtUserGetKeyboardLayout().

dlls/wow64win/syscall.h

@@ -99,6 +99,7 @@
     SYSCALL_ENTRY( NtUserGetClipboardSequenceNumber ) \
     SYSCALL_ENTRY( NtUserGetClipboardViewer ) \
     SYSCALL_ENTRY( NtUserGetKeyState ) \
+    SYSCALL_ENTRY( NtUserGetKeyboardLayout ) \
     SYSCALL_ENTRY( NtUserGetKeyboardState ) \
     SYSCALL_ENTRY( NtUserGetLayeredWindowAttributes ) \
     SYSCALL_ENTRY( NtUserGetMouseMovePointsEx ) \

dlls/wow64win/user.c

@@ -250,6 +250,13 @@ NTSTATUS WINAPI wow64_NtUserGetKeyState( UINT *args )
     return NtUserGetKeyState( vkey );
 }
 
+NTSTATUS WINAPI wow64_NtUserGetKeyboardLayout( UINT *args )
+{
+    DWORD tid = get_ulong( &args );
+
+    return HandleToUlong( NtUserGetKeyboardLayout( tid ));
+}
+
 NTSTATUS WINAPI wow64_NtUserGetKeyboardState( UINT *args )
 {
     BYTE *state = get_ptr( &args );