[MiNT] FreeMiNT's clock on ARAnyM

[Vincent Rivière <vincent.riviere@freesbee.fr>]

Hello.

I have just fixed a bunch of bugs in EmuTOS' clock functions.

And I have discovered that FreeMiNT was affected by EmuTOS clock bugs, 
especially on ARAnyM.

FreeMiNT's clock seems to be initialized from the BIOS, and due to 
EmuTOS' bug, it uses a wrong time (up to 30 seconds in the past). So the 
time inside FreeMiNT is different than the time on the host OS. The 
files created on hostfs pick up the host clock, so from FreeMiNT's point 
of view they are created in the future.

This may explain the "Clock skew detected" sometimes encountered when 
running make.

Everything seems OK with the current EmuTOS from CVS.

--
Vincent Rivière