i2c: Align i2c_device_id

Align i2c_device_id.driver_data to 8 bytes to not fail on crossbuilds.

(Added in d2653e92.)
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

include/linux/mod_devicetable.h

@@ -375,7 +375,8 @@ struct virtio_device_id {
 
 struct i2c_device_id {
 	char name[I2C_NAME_SIZE];
-	kernel_ulong_t driver_data;	/* Data private to the driver */
+	kernel_ulong_t driver_data	/* Data private to the driver */
+			__attribute__((aligned(sizeof(kernel_ulong_t))));
 };