mb/google/brya/var/taniks: Configure DRIVER_TPM_I2C_BUS

Add I2C bus for taniks in Kconfig

BUG=b:210390520
TEST=emerge-brya coreboot and can boot to OS.

Signed-off-by: Joey Peng <joey.peng@lcfc.corp-partner.google.com>
Change-Id: I9b1719c3140c13f67e7cb0e6a69257774884bd4d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60077
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

src/mainboard/google/brya/Kconfig

@@ -90,6 +90,7 @@ config DRIVER_TPM_I2C_BUS
 	default 0x3 if BOARD_GOOGLE_ANAHERA
 	default 0x3 if BOARD_GOOGLE_ANAHERA4ES
 	default 0x3 if BOARD_GOOGLE_VELL
+	default 0x3 if BOARD_GOOGLE_TANIKS
 
 config DRIVER_TPM_I2C_ADDR
 	hex