Change in coreboot[master]: mb/google/dedede: add discrete TPM 2.0 configuration

[Angel Pons (Code Review)]

Attention is currently required from: Aaron Durbin.
Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/52030 )

Change subject: mb/google/dedede: add discrete TPM 2.0 configuration
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Patch Set 2:

(1 comment)

File src/mainboard/google/dedede/variants/baseboard/gpio.c:

https://review.coreboot.org/c/coreboot/+/52030/comment/f0886974_a18a3f60 
PS2, Line 83: 	PAD_CFG_NF(GPP_B18, NONE, DEEP, NF1),
To avoid preprocessor usage, I would extract GSPI1 pad config into two arrays, and program the corresponding array according to `CONFIG(BOARD_GOOGLE_BASEBOARD_DEDEDE_CR50)`.