[PATCH] ntoskrnl/tests: Use wide-char string literals in locale.c.

[Marvin]

Hi,

While running your changed tests, 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:
https://testbot.winehq.org/JobDetails.pl?Key=83311

Your paranoid android.


=== w8 (32 bit report) ===

ntoskrnl.exe:
ntoskrnl.c:676: Test failed: Got unexpected ret -1.
ntoskrnl.c:677: Test failed: Received unexpected data.