mfd: Remove checking on max8925 regulator[0]

Since regulator[0] is always checking in mfd driver, it results in
registration failure without regulator[0].

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/max8925-core.c b/drivers/mfd/max8925-core.c
index 58cc5fd..e1e59c9 100644
--- a/drivers/mfd/max8925-core.c
+++ b/drivers/mfd/max8925-core.c
@@ -627,7 +627,7 @@
 		goto out_dev;
 	}
 
-	if (pdata && pdata->regulator[0]) {
+	if (pdata) {
 		ret = mfd_add_devices(chip->dev, 0, &regulator_devs[0],
 				      ARRAY_SIZE(regulator_devs),
 				      &regulator_resources[0], 0);