regulator: TI bq24022 Li-Ion Charger driver

This adds a regulator driver for the TI bq24022 Single-Chip
Li-Ion Charger with its nCE and ISET2 pins connected to GPIOs.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 29528b7..ac2c64e 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -7,4 +7,6 @@
 obj-$(CONFIG_REGULATOR_FIXED_VOLTAGE) += fixed.o
 obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o
 
+obj-$(CONFIG_REGULATOR_BQ24022) += bq24022.o
+
 ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG