[COMMIT] epia-m support

[Andrew Ip]

I'm pleased to announce EPIA-M is now supported.  I would like
to thank Nougen for sponsoring this.  At this moment, the checkin
supports ddr ram init, etherboot, linux and proper irq routing.  However,
VGA is not done.  There is bug where serial baudrate always start in
57600 from cold boot even 115200 is set, but reset from award bios works 
fine.

-Andrew