Change devices with RTL8231 GPIO expander definition that can easily be
translated to the new RTL8231 binding and carry over any gpio-hogs. This
will let them use the new RTL8231 MFD driver, without any functional
changes.
Signed-off-by: Sander Vanheule <sander@svanheule.net>
(cherry picked from commit b7af54d5c1)