Service files to remove orphaned UBI volumes

This commit provides supplementary service files for
openbmc/openbmc#2264, which adds a function to delete all versions to
each of the BMC and host updaters.

The service files introduced in this change will locate any "orphaned"
BMC or host volumes - that is to say, volumes which do not correspond to
a current version on the system.

Change-Id: If324d24f66ba08fb0b76ca5873addb6bf2446f97
Signed-off-by: Michael Tritz <mtritz@us.ibm.com>
diff --git a/common/recipes-phosphor/flash/phosphor-software-manager/obmc-flash-bmc-cleanup.service b/common/recipes-phosphor/flash/phosphor-software-manager/obmc-flash-bmc-cleanup.service
new file mode 100644
index 0000000..41769a4
--- /dev/null
+++ b/common/recipes-phosphor/flash/phosphor-software-manager/obmc-flash-bmc-cleanup.service
@@ -0,0 +1,8 @@
+[Unit]
+Description=Clean up UBI volumes unattached to a BMC version
+
+[Service]
+Type=oneshot
+RemainAfterExit=no
+ExecStart=/usr/bin/env obmc-flash-bmc ubicleanup
+SyslogIdentifier=obmc-flash-bmc