regulator: tps6507x - add missing platform_set_drvdata in tps6507x_pmic_probe

We should call platform_set_drvdata() before calling platform_get_drvdata().
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

drivers/regulator/tps6507x-regulator.c

@@ -614,6 +614,7 @@ int tps6507x_pmic_probe(struct platform_device *pdev)
 	}
 
 	tps6507x_dev->pmic = tps;
+	platform_set_drvdata(pdev, tps6507x_dev);
 
 	return 0;