Power supply monitor recipe, service, and conf

Add the Witherspoon power supply monitor application, service file, and
configuration files to the witherspoon-pfault-analysis recipe.

Moved OBMC_POWER_SUPPLY_INSTANCES to the global metadata so it can be
shared between recipes.

Resolves: openbmc/openbmc#1731

Depends-On: Ie364a3dc5b7f19cbc587450fc54f231d1ec280f7

Change-Id: I340a1d48a979a97624843e59a5ab1b1ad04056bb
Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
diff --git a/meta-witherspoon/recipes-phosphor/power/witherspoon-pfault-analysis/obmc/power-supply-monitor/power-supply-monitor-1.conf b/meta-witherspoon/recipes-phosphor/power/witherspoon-pfault-analysis/obmc/power-supply-monitor/power-supply-monitor-1.conf
new file mode 100644
index 0000000..fea2ad0
--- /dev/null
+++ b/meta-witherspoon/recipes-phosphor/power/witherspoon-pfault-analysis/obmc/power-supply-monitor/power-supply-monitor-1.conf
@@ -0,0 +1,4 @@
+DEVPATH=/sys/bus/i2c/devices/3-0069
+INSTANCE=1
+INVENTORY=/system/chassis/power_supply1
+