DCMI: Get power reading - add witherspoon config

The D-Bus object that captures the power reading varies
from system to system, using JSON config file to specify
the D-Bus object to read based on the sytem.

Change-Id: I2bfac0826b051d243b4edba34cc0b0e09dc648cf
Signed-off-by: Marri Devender Rao <devenrao@in.ibm.com>
diff --git a/meta-witherspoon/recipes-phosphor/ipmi/phosphor-ipmi-host.bbappend b/meta-witherspoon/recipes-phosphor/ipmi/phosphor-ipmi-host.bbappend
index f72e393..d47847d 100644
--- a/meta-witherspoon/recipes-phosphor/ipmi/phosphor-ipmi-host.bbappend
+++ b/meta-witherspoon/recipes-phosphor/ipmi/phosphor-ipmi-host.bbappend
@@ -2,4 +2,5 @@
 SRC_URI_append_witherspoon = " file://occ_sensors.hardcoded.yaml \
                                file://dev_id.json \
                                file://dcmi_temp_readings.json \
+                               file://power_reading.json \
                              "