regulator: aat2870: Add AAT2870 regulator driver

Add regulator driver for AnalogicTech AAT2870.

Signed-off-by: Jin Park <jinyoungp@nvidia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 13722a7..c7fd2c0 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -310,5 +310,12 @@
 	help
 	  This driver supports TPS65910 voltage regulator chips.
 
+config REGULATOR_AAT2870
+	tristate "AnalogicTech AAT2870 Regulators"
+	depends on MFD_AAT2870_CORE
+	help
+	  If you have a AnalogicTech AAT2870 say Y to enable the
+	  regulator driver.
+
 endif