regulator: Use device platform_data to retrieve db8500 platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NLiam Girdwood <lrg@ti.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

drivers/regulator/db8500-prcmu.c

@@ -13,7 +13,6 @@
 #include <linux/err.h>
 #include <linux/spinlock.h>
 #include <linux/platform_device.h>
-#include <linux/mfd/core.h>
 #include <linux/mfd/db8500-prcmu.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
@@ -471,7 +470,8 @@ static struct db8500_regulator_info
 
 static int __devinit db8500_regulator_probe(struct platform_device *pdev)
 {
-	struct regulator_init_data *db8500_init_data = mfd_get_data(pdev);
+	struct regulator_init_data *db8500_init_data =
+					dev_get_platdata(&pdev->dev);
 	int i, err;
 
 	/* register all regulators */