mb/google/brya/var/nivviks: Add MT62F512M32D2DR-031 WT:B for P1 build

Nivviks P1 will also use Micron MT62F512M32D2DR-031 WT:B. Add it to the
parts list and regenerate the memory IDs using part_id_gen.

BUG=b:217095281
TEST=abuild -a -x -c max -p none -t google/brya -b nivviks

Signed-off-by: Reka Norman <rekanorman@google.com>
Change-Id: I2b56b0844e70a2712923b197436dd2d668e58a27
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61687
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kangheui Won <khwon@chromium.org>

src/mainboard/google/brya/variants/nivviks/memory/Makefile.inc

@@ -5,3 +5,4 @@
 
 SPD_SOURCES =
 SPD_SOURCES += spd/lp5/set-0/spd-2.hex      # ID = 0(0b0000)  Parts = MT62F1G32D4DR-031 WT:B
+SPD_SOURCES += spd/lp5/set-0/spd-1.hex      # ID = 1(0b0001)  Parts = MT62F512M32D2DR-031 WT:B

src/mainboard/google/brya/variants/nivviks/memory/dram_id.generated.txt

@@ -5,3 +5,4 @@
 
 DRAM Part Name                 ID to assign
 MT62F1G32D4DR-031 WT:B         0 (0000)
+MT62F512M32D2DR-031 WT:B       1 (0001)

src/mainboard/google/brya/variants/nivviks/memory/mem_parts_used.txt

@@ -10,3 +10,4 @@
 
 # Part Name
 MT62F1G32D4DR-031 WT:B
+MT62F512M32D2DR-031 WT:B