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>

src/mainboard/google/volteer/variants/copano/memory/Makefile.inc

@@ -0,0 +1,7 @@
+## SPDX-License-Identifier: GPL-2.0-or-later
+## This is an auto-generated file. Do not edit!!
+
+SPD_SOURCES =
+SPD_SOURCES += lp4x-spd-1.hex      # ID = 0(0b0000)  Parts = MT53E512M64D4NW-046 WT:E, H9HCNNNCRMBLPR-NEE, MT53D512M64D4NW-046 WT:F
+SPD_SOURCES += lp4x-spd-4.hex      # ID = 1(0b0001)  Parts = MT53D1G64D4NW-046 WT:A
+SPD_SOURCES += lp4x-spd-3.hex      # ID = 2(0b0010)  Parts = H9HCNNNFBMBLPR-NEE

src/mainboard/google/volteer/variants/copano/memory/dram_id.generated.txt

@@ -0,0 +1,6 @@
+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)

src/mainboard/google/volteer/variants/copano/memory/mem_list_variant.txt

@@ -0,0 +1,5 @@
+MT53E512M64D4NW-046 WT:E
+H9HCNNNCRMBLPR-NEE
+MT53D1G64D4NW-046 WT:A
+H9HCNNNFBMBLPR-NEE
+MT53D512M64D4NW-046 WT:F