mb/google/myst: Add additional memory configurations

Add additional ram parts and generate strapping ids.

BUG=b:285216975
TEST=Build myst image

Change-Id: I2b3b8c9ffcf81bbd2d6ecfad1b612fbf793857c8
Signed-off-by: Rob Barnes <robbarnes@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75821
Reviewed-by: Jon Murphy <jpmurphy@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>

src/mainboard/google/myst/variants/myst/memory/Makefile.inc

@@ -6,3 +6,5 @@
 SPD_SOURCES =
 SPD_SOURCES += spd/lp5/set-1/spd-2.hex      # ID = 0(0b0000)  Parts = H9JCNNNCP3MLYR-N6E
 SPD_SOURCES += spd/lp5/set-1/spd-1.hex      # ID = 1(0b0001)  Parts = MT62F512M32D2DR-031 WT:B
+SPD_SOURCES += spd/lp5/set-1/spd-7.hex      # ID = 2(0b0010)  Parts = MT62F1G32D2DS-026 WT:B
+SPD_SOURCES += spd/lp5/set-1/spd-9.hex      # ID = 3(0b0011)  Parts = K3KL6L60GM-MGCT

src/mainboard/google/myst/variants/myst/memory/dram_id.generated.txt

@@ -6,3 +6,5 @@
 DRAM Part Name                 ID to assign
 H9JCNNNCP3MLYR-N6E             0 (0000)
 MT62F512M32D2DR-031 WT:B       1 (0001)
+MT62F1G32D2DS-026 WT:B         2 (0010)
+K3KL6L60GM-MGCT                3 (0011)

src/mainboard/google/myst/variants/myst/memory/mem_parts_used.txt

@@ -1,2 +1,4 @@
 H9JCNNNCP3MLYR-N6E,
 MT62F512M32D2DR-031 WT:B,
+MT62F1G32D2DS-026 WT:B,
+K3KL6L60GM-MGCT,