video:snow PVT: Add PD_N pin configuration

PVT board will have new PD_N pin(never used before)
Adding PD_N pin initialize
And in PVT snow board changed PD_N->RST_N, New Pin->PD_N

BUG=chrome-os-partner:11315
TEST=boot on snow; see that GPIOY2(5)
Now no H/W to check. So it is tested in re-worked board

Change-Id: I4cf5ef7c12ba552841239ae32529551a2e2e28e8
Signed-off-by: Woojoo Lee <woojoo.lee@samsung.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/27437
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Katie Roberts-Hoffman <katierh@chromium.org>
Tested-by: Katie Roberts-Hoffman <katierh@chromium.org>
1 file changed