mb/google/hatch/variants/helios: Modify touchscreen power on sequence

The previous values do not affect the touchscreen function.  But, the
previous values cause the power leakage in S0ix.

from b/142368161:

1. Modify GPP_D: The specification define T1 >= 10ms. We change it to
   12ms for a safety and low impact value in our mind.  Enable pin as
   GPP_D9 is define to be AVDD in specification. Set it to 10ms to
   make it to be the final one to pull low during power off sequence .

2. Add GPP_C4: If we set stop_off_delay_ms to be 1.  The true T4 we
   got will be 300us . Set stop_off_delay_ms to be 2 . True T4 will be
   500us . So we change it to 5 to be a low impact value in our mind
   according to the true T4 value we got .

BUG=b:142368161
BRANCH=Master
TEST=emerge-hatch coreboot chromeos-bootimage
     ./util/abuild/abuild -p none -t google/hatch -x -a

Signed-off-by: YenLu Chen <kane_chen@pegatron.corp-partner.google.com>
Change-Id: I86c920ff1d5c0b510adde8a37f60003072d5f4e7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35907
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Shelley Chen <shchen@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions