tpm: Drop explicit initialization of struct i2c_device_id::driver_data to 0

These drivers don't use the driver_data member of struct i2c_device_id,
so don't explicitly initialize this member.

This prepares putting driver_data in an anonymous union which requires
either no initialization or named designators. But it's also a nice
cleanup on its own.

Signed-off-by: Uwe Kleine-König <[e-mail]>
Reviewed-by: Jarkko Sakkinen <[e-mail]>
Signed-off-by: Jarkko Sakkinen <[e-mail]>

drivers/char/tpm/st33zp24/i2c.c

···
 }
 
 static const struct i2c_device_id st33zp24_i2c_id[] = {
-	{TPM_ST33_I2C, 0},
+	{ TPM_ST33_I2C },
 	{}
 };
 MODULE_DEVICE_TABLE(i2c, st33zp24_i2c_id);

drivers/char/tpm/tpm_i2c_atmel.c

···
 }
 
 static const struct i2c_device_id i2c_atmel_id[] = {
-	{I2C_DRIVER_NAME, 0},
+	{ I2C_DRIVER_NAME },
 	{}
 };
 MODULE_DEVICE_TABLE(i2c, i2c_atmel_id);

drivers/char/tpm/tpm_tis_i2c.c

···
 }
 
 static const struct i2c_device_id tpm_tis_i2c_id[] = {
-	{ "tpm_tis_i2c", 0 },
+	{ "tpm_tis_i2c" },
 	{}
 };
 MODULE_DEVICE_TABLE(i2c, tpm_tis_i2c_id);