systemd: Add syncronization points for OpenBMC

Add systemd syncronization targets to facilitate expressing
ordering dependencies.

Change-Id: I11d4fb2b8ade8d3ae74ddea44585153e2f59130f
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-phosphor/common/recipes-core/systemd/systemd_%.bbappend b/meta-phosphor/common/recipes-core/systemd/systemd_%.bbappend
index 0fd2931..54ea26a 100644
--- a/meta-phosphor/common/recipes-core/systemd/systemd_%.bbappend
+++ b/meta-phosphor/common/recipes-core/systemd/systemd_%.bbappend
@@ -2,19 +2,15 @@
 PACKAGECONFIG_remove = "machined hibernate ldconfig binfmt backlight quotacheck localed kdbus ima smack polkit"
 FILESEXTRAPATHS_append := "${THISDIR}/${PN}:"
 SRC_URI += "file://default.network"
-SRC_URI += "file://obmc-standby.target"
 SRC_URI += "file://0001-Export-message_append_cmdline.patch"
 
+RRECOMMENDS_${PN} += "obmc-targets"
 FILES_${PN} += "${libdir}/systemd/network/default.network"
-FILES_${PN} += "${systemd_system_unitdir}/obmc-standby.target"
 
 EXTRA_OECONF += " --disable-hwdb"
 
 do_install_append() {
         install -m 644 ${WORKDIR}/default.network ${D}${libdir}/systemd/network/
-        install -m 644 ${WORKDIR}/obmc-standby.target ${D}${systemd_system_unitdir}
-        ln -sf ../obmc-standby.target \
-                ${D}${systemd_system_unitdir}/multi-user.target.wants/obmc-standby.target
 
         #TODO Remove after this issue is resolved
         #https://github.com/openbmc/openbmc/issues/152