kingler: set VBUS ON/OFF delay
kingler: set VBUS ON/OFF delay

Adjust the VBUS turn on/off delay by the measured result.

BUG=b:237045114
TEST=The on/off delay is reflected in the scope result
BRANCH=none

Change-Id: I0f768eed95b5285b9b6abafd49d80538005757d7
Signed-off-by: Eric Yilun Lin <2f2733c7206ea2b76bd2db1905cc5e8a75841c48@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3768130
Reviewed-by: Sung-Chi Li <fd0433206025455ec28707fc538574e45c9e2e3f@chromium.org>
Commit-Queue: Eric Yilun Lin <2f2733c7206ea2b76bd2db1905cc5e8a75841c48@google.com>
Tested-by: Eric Yilun Lin <2f2733c7206ea2b76bd2db1905cc5e8a75841c48@google.com>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec