[openrisc] OR1K arch and OR1200 docs updated !

["Damjan Lampret" <lampret@opencores.org>]

Hello,

openrisc_arch3.pdf and openrisc1200_spec.pdf have been updated. Lots of
changes (please see revision  sections in each document for list of
changes - warning some might be missing from revision). Modifications are
per request from Greg, Chris, Matan, Johan and Marko.

http://www.opencores.org/cgi-bin/cvsget.cgi/or1k/docs/openrisc_arch3.pdf
http://www.opencores.org/cgi-bin/cvsget.cgi/or1k/docs/openrisc1200_spec.pdf

regards,
Damjan