crit-service: start bmc quiesce target on fail

This target will be monitored by the BMC state target and used to tell
external clients when the BMC is in a bad state due to a critical
service failing

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: Ibf0460bef9b3ac2a96e8a294e6de122463530713
diff --git a/target_files/obmc-bmc-service-quiesce@.target b/target_files/obmc-bmc-service-quiesce@.target
new file mode 100644
index 0000000..23d588b
--- /dev/null
+++ b/target_files/obmc-bmc-service-quiesce@.target
@@ -0,0 +1,3 @@
+[Unit]
+Description=BMC Quiesce Target
+RefuseManualStop=yes