google: Disable TPMv2 on most Chromebooks

This feature is not present on older Chromebooks, so disable the
setting.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/configs/chromebook_samus_defconfig b/configs/chromebook_samus_defconfig
index 40cc449..8cdad8d 100644
--- a/configs/chromebook_samus_defconfig
+++ b/configs/chromebook_samus_defconfig
@@ -74,6 +74,7 @@
 CONFIG_SOUND_RT5677=y
 CONFIG_SPI=y
 CONFIG_TPM_TIS_LPC=y
+# CONFIG_TPM_V2 is not set
 CONFIG_USB_STORAGE=y
 CONFIG_USB_KEYBOARD=y
 CONFIG_VIDEO_COPY=y