Support for Olimex LPC-H2294, LPC-E2294, LPC-L2294-1M targets

[Andrew Lunn]

> Andrew
> 
> I clean up olpce2294_misc.c LCD code from not-portable I/O macros and
> test new code on OLPC-E2294. It's okay. Pease, apply a patch against
> CVS.

Thanks
    Committed,
          Andrew