Various adjustments for MSVC.

- MSVC uses different namings in some places. Adjust the sources via the
  preprocessor if build with MSVC.
- MSVC doesn't know about __func__, use name instead.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31185 a1c6a512-1295-4272-9138-f99709370657
3 files changed