Rowan: gpio: update RAM ID pins for Rowan

RAMD_ID_1 moves to PAD_DSI_TE and RAM_ID_2 moves to PAD_RDP1_A on Rowan.

BUG=chrome-os-partner:62672
BRANCH=none
TEST=emerge-rowan coreboot

Change-Id: I64fd29de607a0b360d355fd3724e3a649adc658b
Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Reviewed-on: https://chromium-review.googlesource.com/448397
Reviewed-by: Julius Werner <jwerner@chromium.org>