gpios_to_zephyr_dts: drop IOEX during conversion
gpios_to_zephyr_dts: drop IOEX during conversion

Drop IOEX and IOEX_INT macros during GPIO conversion.

BUG=b:195137794
BRANCH=none
TEST=run for guybrush

Signed-off-by: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>
Change-Id: Icb52e31a33efb1b0a3541448614ac5a8520cbe6b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3169196
Reviewed-by: Diana Z <cb2016afc7183e5356c690dc63b4ba817470501a@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec