da9052-battery: Add missing platform_set_drvdata

Add missing platform_set_drvdata in da9052_bat_probe.
Otherwise, calling platform_get_drvdata in da9052_bat_remove returns NULL.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NAnton Vorontsov <anton.vorontsov@linaro.org>

drivers/power/da9052-battery.c

@@ -612,6 +612,7 @@ static s32 __devinit da9052_bat_probe(struct platform_device *pdev)
 	 if (ret)
 		goto err;
 
+	platform_set_drvdata(pdev, bat);
 	return 0;
 
 err: