mb/google/skyrim: Enable AP <-> D2 communication

Configure D2 I2C and Interrupt GPIOs during the early initialization.
Add devicetree configuration for D2 device and enable the required
config items.

BUG=b:214414776
TEST=Build

Signed-off-by: Jon Murphy <jpmurphy@google.com>
Change-Id: I57b6d0e9da9935596e54b8eab400440e518b4523
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62163
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>

src/mainboard/google/skyrim/Kconfig

@@ -26,6 +26,8 @@ config BOARD_SPECIFIC_OPTIONS
 	select ELOG_GSMI
 	select FW_CONFIG
 	select MAINBOARD_HAS_CHROMEOS
+	select MAINBOARD_HAS_I2C_TPM_CR50
+	select MAINBOARD_HAS_TPM2
 	select SOC_AMD_SABRINA
 	select SOC_AMD_COMMON_BLOCK_USE_ESPI
 
@@ -35,6 +37,14 @@ config CHROMEOS
 config DEVICETREE
 	default "variants/baseboard/devicetree.cb"
 
+config DRIVER_TPM_I2C_BUS
+	hex
+	default 0x03
+
+config DRIVER_TPM_I2C_ADDR
+	hex
+	default 0x50
+
 config FMDFILE
 	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/chromeos.fmd"