hwrng: ba431 - don't init of_device_id's data

We have no device-specific data for silex-insight,ba431-rng. There's no
need to set .data = NULL, this is the default.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/char/hw_random/ba431-rng.c

@@ -201,7 +201,7 @@ static int ba431_trng_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id ba431_trng_dt_ids[] = {
-	{ .compatible = "silex-insight,ba431-rng", .data = NULL },
+	{ .compatible = "silex-insight,ba431-rng" },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, ba431_trng_dt_ids);