spring: Wait 80ms for CABLE_DET to be asserted
spring: Wait 80ms for CABLE_DET to be asserted

From our measurement, it takes ~80ms for CABLE_DET to be asserted. Let's
wait for that long before giving up and declare it an USB host.

BUG=chrome-os-partner:20405
TEST=Manual
BRANCH=Spring

Original-Change-Id: I71568ed8011f9b3f2c9c2ee67aea3c771a5dbf37
Signed-off-by: Vic Yang <5fd92abeee651458f98e2856f4f200ee971cee4d@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/59566
(cherry picked from commit 3c1b2b757546c022d0ae0eb22e3db9feb41055c4)

Change-Id: Id2329d477f17f1db0309960ee9faeb770b2c50a0
Signed-off-by: Vic Yang <5fd92abeee651458f98e2856f4f200ee971cee4d@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/59667
Reviewed-by: Vincent Palatin <70a9964ec8fd10b0b08fcc8623c2add25ddf99ac@chromium.org>

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