Change in coreboot[master]: mb/google/guybrush/var/dewatt: update DRAM ID table

[Paul Menzel (Code Review)]

Attention is currently required from: Kenneth Chan.
Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/60090 )

Change subject: mb/google/guybrush/var/dewatt: update DRAM ID table
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Patch Set 4:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/60090/comment/875bd29e_a81df3a2 
PS4, Line 9: 1.Samsung LPDDR4X 4266 4G K4UBE3D4AB-MGCL
           : 2.Hynix LPDDR4X 4266 4G H54G56CYRBX247
Please add a space after the enumeration dots/periods.
> Samsung …

File src/mainboard/google/guybrush/variants/guybrush/memory/mem_parts_used.txt:

https://review.coreboot.org/c/coreboot/+/60090/comment/e930a562_965477db 
PS4, Line 13: H54G56CYRBX247
Please comment, why this is here already.