Add phosphor-host-check and required host services

This application and services will be used by the host reset service
to determine if the host is running after a BMC has been rebooted

Change-Id: I8299546b0f275ebbb46aa775ab7b0633cc3fd5e0
Signed-off-by: Andrew Geissler <andrewg@us.ibm.com>
diff --git a/conf/distro/include/phosphor-defaults.inc b/conf/distro/include/phosphor-defaults.inc
index 53298da..8ce8e4b 100644
--- a/conf/distro/include/phosphor-defaults.inc
+++ b/conf/distro/include/phosphor-defaults.inc
@@ -39,6 +39,13 @@
 # power the host back on.
 VIRTUAL-RUNTIME_obmc-discover-system-state ?= "phosphor-state-manager-discover"
 
+# obmc-host-check
+#
+# Provides an implementation of phosphor-host-check, which will determine
+# if the host is running after a BMC reboot and create the necessary file
+# to indicate to host services that the host is running
+VIRTUAL-RUNTIME_obmc-host-check ?= "phosphor-state-manager-host-check"
+
 # obmc-fan-presence
 #
 # Provides implementations of fan presence detection