[PATCH 0/1] MR6819: include: Fix WM_IME_KEY* typo.

[Marc-Aurel Zent (＠mzent)]

As far as I can tell, ime.h is only included by the x11 keyboard driver and `WM_IMEKEYDOWN` and `WM_IMEKEYUP` are not used there, so this change should only bring the naming convention in line with what is already in winuser and MSDN.