ryu: Disable pull-up on AP_IN_SUSPEND
ryu: Disable pull-up on AP_IN_SUSPEND

There's already an external pull-up to PP3300. The internal pull-up has
no use but provides a leakage path when the AP is off.

BUG=chrome-os-partner:31762
TEST=Repeatedly power cycle Ryu. Check the system goes to S0/S5.
TEST=Power off from the AP. Check the system goes to S5.
BRANCH=None

Change-Id: Id0ae966414de01e3a2b91314f661f37941175a87
Signed-off-by: Vic Yang <5fd92abeee651458f98e2856f4f200ee971cee4d@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/222625
Reviewed-by: Aaron Durbin <af0622ab041e8b0f8e5819838dcc93898196e71f@chromium.org>
Reviewed-by: Vincent Palatin <70a9964ec8fd10b0b08fcc8623c2add25ddf99ac@chromium.org>

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