linux-user/cpu-uname.c: Convert to UTF-8

Convert comment from ISO-8859-1 encoding to UTF-8 to match the rest
of QEMU's source code.

Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>

linux-user/cpu-uname.c

 /*
  *  cpu to uname machine name map
  *
- *  Copyright (c) 2009 Loc Minier
+ *  Copyright (c) 2009 Loïc Minier
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by