Guybrush: Don't read GPIO_EN_KB_BL as ioex
Guybrush: Don't read GPIO_EN_KB_BL as ioex

GPIO_EN_KB_BL is being read as an ioexpander gpio. This was true on
Zork but on Guybrush it's a regular EC GPIO.

BUG=None
BRANCH=None
TEST=Build

Change-Id: I1ced4ebbb8c5cbd2dfca0e12528dfcb8fa47f789
Signed-off-by: Rob Barnes <3ced0940a2329ce70499686f01d3d60685ec66ed@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2755194
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