systemd: export message_append_cmdline

Change-Id: I337ebf4eda95597b59778c7f6198fa5388472c2e
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 3c3dbac..0fd2931 100644
--- a/meta-phosphor/common/recipes-core/systemd/systemd_%.bbappend
+++ b/meta-phosphor/common/recipes-core/systemd/systemd_%.bbappend
@@ -3,6 +3,7 @@
 FILESEXTRAPATHS_append := "${THISDIR}/${PN}:"
 SRC_URI += "file://default.network"
 SRC_URI += "file://obmc-standby.target"
+SRC_URI += "file://0001-Export-message_append_cmdline.patch"
 
 FILES_${PN} += "${libdir}/systemd/network/default.network"
 FILES_${PN} += "${systemd_system_unitdir}/obmc-standby.target"