[PATCH 0/2] Disable functionality that doesn't work on MINGW32

[Mario Limonciello]

The following two patches are for disabling some specifics that will not work 
on MINGW32.

Vladimir explicitly expressed disinterest in going the route of #undef 
GRUB_UTIL, but it seems to be the most appropriate method in the first patch to 
me because MINGW32 does not support ttys and won't ever.

The second patch just matches other code, since there is no 
grub_util_get_fd_sectors defined on MINGW32.  This will at least get the file 
compiling with potentially broken functionality, which I see as an improvement 
over not compiling and no functionality.

--
*Mario Limonciello*
Linux Engineer
*Dell*| OS Engineering