The naming of the defines suggests that there are three IISv4 ports
with one data line each when in fact there is a single IISv4 port
with three data lines.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

GPIO register and configuration definitions for GPIO
banks A, B and C.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>