Disable SPI module on link
Disable SPI module on link

EC won't be accessing BIOS SPI, so no need to compile in this code.

BUG=chrome-os-partner:11232
TEST='spi' command on EC console should no longer be valid
BRANCH=link

Change-Id: I09d5e99dbe1fd63cb7839454030067d29249a9ed
Signed-off-by: Randall Spangler <62698fdbb84d1779579ee80c3f39fac22017e5bc@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/31516
Reviewed-by: Vic Yang <5fd92abeee651458f98e2856f4f200ee971cee4d@chromium.org>

gelraen/cros-ec,eatbyte/chromium-ec,mtk09422/chromiumos-platform-ec,fourier49/BZ_DEV_EC,coreboot/chrome-ec,mtk09422/chromiumos-platform-ec,coreboot/chrome-ec,coreboot/chrome-ec,fourier49/BIZ_EC,thehobn/ec,longsleep/ec,fourier49/BIZ_EC,md5555/ec,akappy7/ChromeOS_EC_LED_Diagnostics,fourier49/BIZ_EC,mtk09422/chromiumos-platform-ec,md5555/ec,coreboot/chrome-ec,eatbyte/chromium-ec,alterapraxisptyltd/chromium-ec,gelraen/cros-ec,alterapraxisptyltd/chromium-ec,md5555/ec,eatbyte/chromium-ec,thehobn/ec,akappy7/ChromeOS_EC_LED_Diagnostics,thehobn/ec,gelraen/cros-ec,fourier49/BZ_DEV_EC,alterapraxisptyltd/chromium-ec,akappy7/ChromeOS_EC_LED_Diagnostics,longsleep/ec,eatbyte/chromium-ec,longsleep/ec,coreboot/chrome-ec,alterapraxisptyltd/chromium-ec,fourier49/BIZ_EC,fourier49/BZ_DEV_EC,coreboot/chrome-ec,thehobn/ec,fourier49/BZ_DEV_EC,akappy7/ChromeOS_EC_LED_Diagnostics,mtk09422/chromiumos-platform-ec,md5555/ec,gelraen/cros-ec,akappy7/ChromeOS_EC_LED_Diagnostics,longsleep/ec