pinctrl: iproc-gpio: Fix incorrect pinconf configurations

Fix drive strength for AON/CRMU controller; fix pull-up/down setting
for CCM/CDRU controller.

Fixes: 616043d5 ("pinctrl: Rename gpio driver from cygnus to iproc")
Signed-off-by: Li Jin <li.jin@broadcom.com>
Link: https://lore.kernel.org/r/1567054348-19685-2-git-send-email-srinath.mannam@broadcom.com


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>