Add power supply hwmon config files

Puts current, voltage, and power properties on D-Bus
for the two power supplies.

Resolves openbmc/openbmc#2115

Change-Id: I52e85297a70f40854e141db9a25358511033ac02
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/meta-witherspoon/recipes-phosphor/sensors/phosphor-hwmon%.bbappend b/meta-witherspoon/recipes-phosphor/sensors/phosphor-hwmon%.bbappend
index 8aef1f1..ebdcac8 100644
--- a/meta-witherspoon/recipes-phosphor/sensors/phosphor-hwmon%.bbappend
+++ b/meta-witherspoon/recipes-phosphor/sensors/phosphor-hwmon%.bbappend
@@ -4,6 +4,8 @@
                i2c@1e78a000/i2c-bus@100/bmp280@77 \
                i2c@1e78a000/i2c-bus@100/dps310@76 \
                i2c@1e78a000/i2c-bus@100/max31785@52 \
+               i2c@1e78a000/i2c-bus@100/power-supply@68 \
+               i2c@1e78a000/i2c-bus@100/power-supply@69 \
                i2c@1e78a000/i2c-bus@140/ir35221@70 \
                i2c@1e78a000/i2c-bus@140/ir35221@71 \
                i2c@1e78a000/i2c-bus@180/ir35221@70 \