mb/google/dedede/var/taranza: Generate SPD ID for supported parts

Add supported memory parts in the mem_parts_used.txt and generate the
SPD ID for the parts.

BUG=b:277664211
BRANCH=dedede
TEST=build

Signed-off-by: Sheng-Liang Pan <sheng-liang.pan@quanta.corp-partner.google.com>
Change-Id: I6bbb67ccdd8ebc21719921d00320907f8dbb285f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74933
Reviewed-by: Zhuohao Lee <zhuohao@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/dedede/variants/taranza/memory/Makefile.inc

@@ -1,5 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 # This is an auto-generated file. Do not edit!!
-# Add memory parts in mem_parts_used.txt and run spd_tools to regenerate.
+# Generated by:
+# ./util/spd_tools/bin/part_id_gen JSL lp4x src/mainboard/google/dedede/variants/taranza/memory/ src/mainboard/google/dedede/variants/taranza/memory/mem_parts_used.txt
 
-SPD_SOURCES = placeholder
+SPD_SOURCES =
+SPD_SOURCES += spd/lp4x/set-1/spd-1.hex      # ID = 0(0b0000)  Parts = MT53E512M32D1NP-046 WT:B

src/mainboard/google/dedede/variants/taranza/memory/dram_id.generated.txt

@@ -1 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# This is an auto-generated file. Do not edit!!
+# Generated by:
+# ./util/spd_tools/bin/part_id_gen JSL lp4x src/mainboard/google/dedede/variants/taranza/memory/ src/mainboard/google/dedede/variants/taranza/memory/mem_parts_used.txt
+
 DRAM Part Name                 ID to assign
+MT53E512M32D1NP-046 WT:B       0 (0000)

src/mainboard/google/dedede/variants/taranza/memory/mem_parts_used.txt

@@ -9,3 +9,4 @@
 # See util/spd_tools/README.md for more details and instructions.
 
 # Part Name
+MT53E512M32D1NP-046 WT:B