TCPMv2: Change PD_T_PS_SOURCE_OFF value
TCPMv2: Change PD_T_PS_SOURCE_OFF value

PD_T_PS_SOURCE_OFF is 750 to 920 ms, currently it is set to the maximum
value. But, we need to detect the state and take the exit action within
this maximum time, which leaves no room for overhead if this is set to
the maximum value.

Instead, set to the midpoint value of 835ms.

BUG=b:181055620
TEST=TD.PD.FRSISNK3.E5 on Voxel
BRANCH=None

Signed-off-by: Eric Herrmann <12250e28c55eb76c3d4c0703db67acc60d621e70@chromium.org>
Change-Id: I4b2b75332774ca0fb8e0913053739da6d58d428a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2730631
Reviewed-by: Diana Z <cb2016afc7183e5356c690dc63b4ba817470501a@chromium.org>
Reviewed-by: Abe Levkoy <2e1ad7039298f93262cf06bbb457275fb3e2ecb5@chromium.org>

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