regulator: lp87565: Fix probe failure for "ti,lp87565"

The "ti,lp87565" compatible string is still in of_lp87565_match_table,
but current code will return -EINVAL because lp87565->dev_type is unknown.
This was working in earlier kernel versions, so fix it.

Fixes: 7ee63bd7 ("regulator: lp87565: Add 4-phase lp87561 regulator support")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20190711113517.26077-1-axel.lin@ingics.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/lp87565-regulator.c

@@ -163,7 +163,7 @@ static int lp87565_regulator_probe(struct platform_device *pdev)
 	struct lp87565 *lp87565 = dev_get_drvdata(pdev->dev.parent);
 	struct regulator_config config = { };
 	struct regulator_dev *rdev;
-	int i, min_idx = LP87565_BUCK_0, max_idx = LP87565_BUCK_3;
+	int i, min_idx, max_idx;
 
 	platform_set_drvdata(pdev, lp87565);
 
@@ -182,9 +182,9 @@ static int lp87565_regulator_probe(struct platform_device *pdev)
 		max_idx = LP87565_BUCK_3210;
 		break;
 	default:
-		dev_err(lp87565->dev, "Invalid lp config %d\n",
-			lp87565->dev_type);
-		return -EINVAL;
+		min_idx = LP87565_BUCK_0;
+		max_idx = LP87565_BUCK_3;
+		break;
 	}
 
 	for (i = min_idx; i <= max_idx; i++) {