meta-openpower: prep for new override syntax

Change-Id: I5ca16c6fa7bc616bfa9bc41c4f86d32fd92b0287
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/meta-openpower/recipes-phosphor/flash/phosphor-software-manager_%.bbappend b/meta-openpower/recipes-phosphor/flash/phosphor-software-manager_%.bbappend
index 4f2ea98..5255be4 100644
--- a/meta-openpower/recipes-phosphor/flash/phosphor-software-manager_%.bbappend
+++ b/meta-openpower/recipes-phosphor/flash/phosphor-software-manager_%.bbappend
@@ -1,4 +1,4 @@
-FILESEXTRAPATHS_prepend_df-openpower := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS:prepend:df-openpower := "${THISDIR}/${PN}:"
 
-SYSTEMD_OVERRIDE_${PN}-updater_append_df-openpower = \
+SYSTEMD_OVERRIDE_${PN}-updater:append:df-openpower = \
     " software-bmc-updater.conf:xyz.openbmc_project.Software.BMC.Updater.service.d/software-bmc-updater.conf"