mb/google/dedede/var/cret: Generate new SPD ID for new memory parts

Add new memory parts in the mem_parts_used.txt and generate the
SPD ID for the parts. The memory parts being added are:
1. Samsung K4U6E3S4AB-MGCL
2. Hynix H54G46CYRBX267

BUG=b:203837656
BRANCH=dedede
TEST=FW_NAME=cret emerge-dedede coreboot chromeos-bootimage

Signed-off-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Change-Id: I03980858f89e56320ddff3a808110a5f1dd57784
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58412
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shou-Chieh Hsu <shouchieh@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>

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

@@ -4,4 +4,4 @@
 # util/spd_tools/bin/part_id_gen JSL lp4x src/mainboard/google/dedede/variants/cret/memory src/mainboard/google/dedede/variants/cret/memory/mem_parts_used.txt
 
 SPD_SOURCES =
-SPD_SOURCES += spd/lp4x/set-1/spd-1.hex      # ID = 0(0b0000)  Parts = H9HCNNNBKMMLXR-NEE, MT53E512M32D2NP-046 WT:F, K4U6E3S4AA-MGCR, MT53E512M32D1NP-046 WT:B
+SPD_SOURCES += spd/lp4x/set-1/spd-1.hex      # ID = 0(0b0000)  Parts = H9HCNNNBKMMLXR-NEE, MT53E512M32D2NP-046 WT:F, K4U6E3S4AA-MGCR, MT53E512M32D1NP-046 WT:B, K4U6E3S4AB-MGCL, H54G46CYRBX267

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

@@ -8,3 +8,5 @@ H9HCNNNBKMMLXR-NEE             0 (0000)
 MT53E512M32D2NP-046 WT:F       0 (0000)
 K4U6E3S4AA-MGCR                0 (0000)
 MT53E512M32D1NP-046 WT:B       0 (0000)
+K4U6E3S4AB-MGCL                0 (0000)
+H54G46CYRBX267                 0 (0000)

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

@@ -2,3 +2,5 @@ H9HCNNNBKMMLXR-NEE
 MT53E512M32D2NP-046 WT:F
 K4U6E3S4AA-MGCR
 MT53E512M32D1NP-046 WT:B
+K4U6E3S4AB-MGCL
+H54G46CYRBX267