crossystem: add support for AMD0030 gpiochip

On AMD Stoney Ridge systems, the pinctrl (gpiochip) driver label is
"AMD0030".

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>

BUG=b:65597554
TEST=w/ coreboot patches:
  https://review.coreboot.org/#/c/21684/
  https://review.coreboot.org/#/c/21614/
TEST=crossystem wpsw_cur
  => 0
BRANCH=None

Change-Id: Iab0a1a28dd3e42d55cf3b18503e2df0de7b8ad11
Reviewed-on: https://chromium-review.googlesource.com/685945
Commit-Ready: Daniel Kurtz <djkurtz@chromium.org>
Tested-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/host/arch/x86/lib/crossystem_arch.c b/host/arch/x86/lib/crossystem_arch.c
index 72263dc..9f8ca66 100644
--- a/host/arch/x86/lib/crossystem_arch.c
+++ b/host/arch/x86/lib/crossystem_arch.c
@@ -657,6 +657,7 @@
 };
 
 static const struct GpioChipset chipsets_supported[] = {
+	{ "AMD0030", FindGpioChipOffset },
 	{ "NM10", FindGpioChipOffset },
 	{ "CougarPoint", FindGpioChipOffset },
 	{ "PantherPoint", FindGpioChipOffset },