regulator: Add MODULE_DEVICE_TABLE to max8997 and max8998

The device table is required to load modules based on modaliases.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: MyungJoo Ham <myungjoo.ham@smasung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c
index 0ec49ca..4341026 100644
--- a/drivers/regulator/max8998.c
+++ b/drivers/regulator/max8998.c
@@ -887,6 +887,7 @@
 	{ "lp3974-pmic", TYPE_LP3974 },
 	{ }
 };
+MODULE_DEVICE_TABLE(platform, max8998_pmic_id);
 
 static struct platform_driver max8998_pmic_driver = {
 	.driver = {