Jia has claimed he is no longer able to maintain.  I have fixing bugs here
and there and getting familiar with the code base. Orignal thread from Jia:

 https://lists.librecores.org/pipermail/openrisc/2017-January/000321.htmlSigned-off-by: NStafford Horne <shorne@gmail.com>
Reviewed-by: NAlex Bennée <alex.bennee@linaro.org>