power_supply: Add custom property for USB High Current mode

For smb347.

Change-Id: I3323469072e1ee5085d61af8a89612b06b91f94a
Signed-off-by: Todd Poynor <toddpoynor@google.com>

drivers/power/power_supply_sysfs.c

@@ -201,6 +201,8 @@ static struct device_attribute power_supply_attrs[] = {
 	POWER_SUPPLY_ATTR(model_name),
 	POWER_SUPPLY_ATTR(manufacturer),
 	POWER_SUPPLY_ATTR(serial_number),
+	/* Local extensions */
+	POWER_SUPPLY_ATTR(usb_hc),
 };
 
 static struct attribute *

include/linux/power_supply.h

@@ -152,6 +152,8 @@ enum power_supply_property {
 	POWER_SUPPLY_PROP_MODEL_NAME,
 	POWER_SUPPLY_PROP_MANUFACTURER,
 	POWER_SUPPLY_PROP_SERIAL_NUMBER,
+	/* Local extensions */
+	POWER_SUPPLY_PROP_USB_HC,
 };
 
 enum power_supply_type {