crossystem: Add LynxPoint to list of valid x86 chipset types

Haswell CPUs are paired with the LynxPoint chipset and this
needs to be a valid controller name for crossystem.

BUG=chrome-os-partner:19263
BRANCH=none
TEST=manual

This was tested on a wtm2 system to ensure that a GPIO
defined in chromeos ACPI that is exported by the kernel at
/sys/devices/platform/chromeos_acpi/GPIO.# is used by crossystem
and the GPIO is exported in /sys/class/gpio and read.

$ cat /sys/devices/platform/chromeos_acpi/GPIO.1/GPIO.2
34
$ cat /sys/class/gpio/gpio196/value
1
$ crossystem wpsw_cur
1

Change-Id: I04064109e99270d7d26b27182b17fffbf47b025b
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/50224
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
1 file changed