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

[Aaron Durbin (Code Review)]

Attention is currently required from: Furquan Shaikh, Paul Menzel, Aseda Aboagye, Karthik Ramasubramanian.
Hello build bot (Jenkins), Furquan Shaikh, Aseda Aboagye, Karthik Ramasubramanian,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/52030

to look at the new patch set (#2).

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

There are forthcoming designs that will be utilizing
a discrete TPM 2.0 solution. Split the existing dedede
configuration options so future mainboard variants can
easily select the appropriate Kconfig option using the
newly introduced options:
- BOARD_GOOGLE_BASEBOARD_DEDEDE_CR50
- BOARD_GOOGLE_BASEBOARD_DEDEDE_TPM2
The existing variants all select the former option,
BOARD_GOOGLE_BASEBOARD_DEDEDE_CR50 since all those
designs currently utilize Cr50.

BUG=b:184151664

Change-Id: I2bdb1ca4fd78cc0628256d49678ea042c55f6fba
Signed-off-by: Aaron Durbin 
---
M src/mainboard/google/dedede/Kconfig
M src/mainboard/google/dedede/Kconfig.name
M src/mainboard/google/dedede/mainboard.c
M src/mainboard/google/dedede/variants/baseboard/gpio.c
4 files changed, 62 insertions(+), 30 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/30/52030/2