mb/google/skyrim: Enable SOC_AMD_COMMON_BLOCK_I2C3_TPM_SHARED_WITH_PSP

Skyrim platforms have I2C3 controller which is shared between PSP and
X86. In order to enable cooperation, PSP acts as an arbitrator. Enable
SOC_AMD_COMMON_BLOCK_I2C3_TPM_SHARED_WITH_PSP, so that proper driver is
binded on the OS side.

BUG=b:241878652
BRANCH=none
TEST=Build kernel and firmware. Run on skyrim and verify TPM
     functionality.

Signed-off-by: Jan Dabros <jsd@semihalf.com>
Change-Id: I2a3de8cb2b9241e2d81e02df49f317ac0408d5bb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67675
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
diff --git a/src/mainboard/google/skyrim/Kconfig b/src/mainboard/google/skyrim/Kconfig
index d21bcc8..e545ba5 100644
--- a/src/mainboard/google/skyrim/Kconfig
+++ b/src/mainboard/google/skyrim/Kconfig
@@ -37,6 +37,7 @@
 	select MAINBOARD_HAS_CHROMEOS
 	select MAINBOARD_HAS_TPM2
 	select SOC_AMD_MENDOCINO
+	select SOC_AMD_COMMON_BLOCK_I2C3_TPM_SHARED_WITH_PSP
 	select SOC_AMD_COMMON_BLOCK_USE_ESPI
 	select TPM_GOOGLE_TI50
 	select PCIEXP_ASPM