Define for reserved register 31 had the incorrect address. Specify
the correct address.
Reported-by: NJens-Peter Oswald <oswald@lre.de>
Signed-off-by: NAkshay Bhat <akshay.bhat@timesys.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>