kernel32: Change LCMapStringW to LCMapStringEx and call it from LCMapStringW (try 2)

[Marvin]

Hi,

While running your changed tests on Windows, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?
Full results can be found at
http://winetestbot.dolphin/JobDetails.pl?Key=84

Your paranoid android.


=== debiantesting (build) ===
Patch failed to apply