mb/google/hatch/variants/helios: Use LPDDR3 memory

mb/google/hatch/variants/helios: Use LPDDR3 memory

Change the SPD makefile to use the LPDDR3 SPDs. Set up the arrays
for mapping SoC DQS pins to LPDDR3 pins.

BRANCH=none
BUG=b:133455595
TEST=`FEATURES="noclean" FW_NAME="helios" emerge-hatch chromeos-ec
depthcharge vboot_reference libpayload coreboot-private-files
intel-cmlfsp coreboot-private-files-hatch coreboot chromeos-bootimage`
Ensure the firmware builds without error.

Change-Id: Iebaba2ec65dfcf36674b4733b421ada107b22b09
Signed-off-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33456
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Shelley Chen <shchen@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>