mfd: Fix missing abx500 header file updates

I missed to include a patch adding the new silicon revision define
CUT3P3 and remove the retired CUT0 versions of AB8500. Also delete
the reference to the retired AB3550 from the header.

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>