amenia: update TCPC0 reset/power down assertion time
amenia: update TCPC0 reset/power down assertion time

BUG=none
BRANCH=none
TEST=system is able to establish PD contract

Change-Id: Iadbe5e9824ce31a314c0cd3e27fa53ac33bf9a21
Signed-off-by: Kevin K Wong <8bf1d1ccd36a6bfde85ceaaa1fe52f2093ecf3aa@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/347241
Reviewed-by: David Hendricks <3b0deacc4b5357f519084f1ea34bd42bf5d34545@chromium.org>
Reviewed-by: Shawn N <5259333ce42e3ace6a73988cec7115ed9d3a661a@chromium.org>

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