Fix power button being held down for 8 sec
Fix power button being held down for 8 sec

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:7932
TEST=hold down power button >8 sec; PCH_PWRBTNn should stay low

Change-Id: If3168984982343735f0c31fb5951374808eb1caf

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