mb/google/volteer/variant/copano: Add memory part support

mb/google/volteer/variant/copano: Add memory part support

Add support for the following 5 LPDDR4x memory parts:
- MT53E512M64D4NW-046 WT:E
- H9HCNNNCRMBLPR-NEE
- MT53D1G64D4NW-046 WT:A
- H9HCNNNFBMBLPR-NEE
- MT53D512M64D4NW-046 WT:F

DRAM Part Name                 ID to assign
-------------------------------------------
MT53E512M64D4NW-046 WT:E       0 (0000)
H9HCNNNCRMBLPR-NEE             0 (0000)
MT53D1G64D4NW-046 WT:A         1 (0001)
H9HCNNNFBMBLPR-NEE             2 (0010)
MT53D512M64D4NW-046 WT:F       0 (0000)

BUG=b:172993397
TEST=none

Change-Id: Iff8f6257c6cff77fc3f0bda7e75434f9f4de1777
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47981
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>