Please add support for OpenRISC/or1k architecture

Hi,

I am requesting to pull from my repository to allow to get this package compiled in OpenRISC/or1k architecture.  I am participating in a port for this architecture in Debian.

The individual commits (two) are adding the definition for LG_QUANTUM and updating the files config.{guess,sub}.  You can take those from the upstream autotools versions, if there are more up to date.

Cheers.