nipperkin: update gpio enable/disable sequence
nipperkin: update gpio enable/disable sequence

We found a leakage during enable HDMI retimer,
this CL update HDMI retimer enable sequence to
prevent leakage.

BUG=b:218975937
BRANCH=none
TEST=make BOARD=nipperkin

Signed-off-by: Zick Wei <3d0b14a1e83601e71d11cd2c38ee93ff1dbbc737@quanta.corp-partner.google.com>
Change-Id: I9513027291ef545350c0d768b9e1aa0741e170ea
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3467377
Reviewed-by: Rob Barnes <3ced0940a2329ce70499686f01d3d60685ec66ed@google.com>
Reviewed-by: Diana Z <cb2016afc7183e5356c690dc63b4ba817470501a@chromium.org>

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