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.bb b/common/recipes-phosphor/flash/phosphor-software-manager.bb
index 0dc4dfd..fb24ee9 100644
--- a/common/recipes-phosphor/flash/phosphor-software-manager.bb
+++ b/common/recipes-phosphor/flash/phosphor-software-manager.bb
@@ -77,6 +77,7 @@
     obmc-flash-bmc-updateubootvars@.service \
     reboot-guard-enable.service \
     reboot-guard-disable.service \
+    obmc-flash-bmc-cleanup.service \
     "
 
 # Name of the mtd device where the ubi volumes should be created