drivers/pc80/tpm: Remove support code if TPM is disabled

Change-Id: I7015d4bf6f536c5cea8e1174db81f09f756ae0e5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41873
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Reviewed-by: Michael Niewöhner

src/drivers/pc80/tpm/tis.c

@@ -993,6 +993,7 @@ static struct pnp_info pnp_dev_info[] = {
 
 static void enable_dev(struct device *dev)
 {
+	if (CONFIG(TPM1) || CONFIG(TPM2))
 		pnp_enable_devices(dev, &lpc_tpm_ops,
 			ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
 }