[M] Change in coreboot[main]: src/mainboard/siemens/fa_ehl: Configure LPDDR4 initialization

[Paul Menzel (Code Review)]

Attention is currently required from: Johannes Hahn, Mario Scheithauer, Uwe Poeche, Werner Zeh.

Paul Menzel has posted comments on this change by Johannes Hahn. ( https://review.coreboot.org/c/coreboot/+/86424?usp=email )

Change subject: src/mainboard/siemens/fa_ehl: Configure LPDDR4 initialization
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Patch Set 5:

(6 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/86424/comment/732c5c58_f3922be7?usp... :
PS5, Line 9: KConfig
Kconfig

https://review.coreboot.org/c/coreboot/+/86424/comment/6752de69_84984aa9?usp... :
PS5, Line 10: Nanya_NT6AP512T32BV-J1I.spd.hex
How was this created?

https://review.coreboot.org/c/coreboot/+/86424/comment/41e29f3d_d7d36bb4?usp... :
PS5, Line 12: confiugration
configuration

https://review.coreboot.org/c/coreboot/+/86424/comment/6da6bd68_c2bc8657?usp... :
PS5, Line 12: Additional
Additional*ly*

File src/mainboard/siemens/fa_ehl/variants/fa_ehl/Kconfig:

https://review.coreboot.org/c/coreboot/+/86424/comment/bf9be2a2_7365e3c6?usp... :
PS5, Line 10: 	select USE_SIEMENS_HWILIB
Please make this a separate commit.

File src/mainboard/siemens/fa_ehl/variants/fa_ehl/memory.c:

https://review.coreboot.org/c/coreboot/+/86424/comment/b8cecaaa_b7f82584?usp... :
PS5, Line 4: #include <gpio.h>
Please make this a separate commit.