HACK: samus: workaround for gpiochip label

The Samus EVT2 BIOS names the GPIO controller "PCH-LP" which does
not match the label in the kernel.  As a workaround for the factory
use an alias for the PCH-LP that will allow it to find GPIOs properly.

TEST='crossystem wpsw_cur' returns 1 on samus with 6300.18 firmware

Change-Id: I0b2a109bf79c851d9894e938741622f5c4941da0
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/224573
Commit-Queue: Ricky Liang <jcliang@chromium.org>
Tested-by: Ricky Liang <jcliang@chromium.org>
1 file changed