[XS] Change in coreboot[main]: configs: enable TPM PPI for asrock_b85m_pro4.tpm2_txt_placeholder_acms

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/81800?usp=email )

Change subject: configs: enable TPM PPI for asrock_b85m_pro4.tpm2_txt_placeholder_acms
......................................................................

configs: enable TPM PPI for asrock_b85m_pro4.tpm2_txt_placeholder_acms

This is a good board for compiling TPM PPI sources for the following
reasons (based on `config TPM_PPI` definition):
 - uses TPM
 - the board is not related to ChromeOS
 - ACPI tables are enabled
 - it doesn't use EDK2 payload

At the moment drivers/tpm/ppi.c seems to not be compiled by CI at all,
see CB:69161 and CB:81590.

`CONFIG_TPM_PPI` is off by default but at least several configurations
under `configs/` (Protectli, MSI) should exercise the file because they
use EDK2 payload which changes default value.  This is however negated
by abuild disabling all payloads and thus effectively preventing
`CONFIG_TPM_PPI` from being set.  This board not using EDK2 also ensures
that `CONFIG_TPM_PPI=y` will not disappear after some future
`make savedefconfig`.

Change-Id: I316747a79b3142e9d6188c5986b344c7751d92d7
Signed-off-by: Sergii Dmytruk 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81800
Reviewed-by: Julius Werner 
Tested-by: build bot (Jenkins) 
---
M configs/config.asrock_b85m_pro4.tpm2_txt_placeholder_acms
1 file changed, 3 insertions(+), 0 deletions(-)

Approvals:
  Julius Werner: Looks good to me, approved
  build bot (Jenkins): Verified

diff --git a/configs/config.asrock_b85m_pro4.tpm2_txt_placeholder_acms b/configs/config.asrock_b85m_pro4.tpm2_txt_placeholder_acms
index 4edeb0c..da33450 100644
--- a/configs/config.asrock_b85m_pro4.tpm2_txt_placeholder_acms
+++ b/configs/config.asrock_b85m_pro4.tpm2_txt_placeholder_acms
@@ -1,8 +1,11 @@
 # Known-working configuration to boot with TXT enabled. Since BIOS
 # and SINIT ACM blobs are missing, use something else as placeholder.
 # Used ACMs were extracted from a Supermicro X10SLH firmware update.
+#
+# CONFIG_TPM_PPI=y tests building PPI implementation.
 CONFIG_VENDOR_ASROCK=y
 CONFIG_BOARD_ASROCK_B85M_PRO4=y
+CONFIG_TPM_PPI=y
 CONFIG_TPM2=y
 CONFIG_INTEL_TXT=y
 CONFIG_INTEL_TXT_BIOSACM_FILE="3rdparty/blobs/cpu/intel/stm/stm.bin"