meta-phosphor: prep for new override syntax

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I588025b614416c43aa2d053765ab53bacf890cb5
diff --git a/meta-phosphor/recipes-phosphor/flash/obmc-flash-bios_git.bb b/meta-phosphor/recipes-phosphor/flash/obmc-flash-bios_git.bb
index 8ecc042..d5e24a3 100644
--- a/meta-phosphor/recipes-phosphor/flash/obmc-flash-bios_git.bb
+++ b/meta-phosphor/recipes-phosphor/flash/obmc-flash-bios_git.bb
@@ -10,5 +10,5 @@
 inherit pkgconfig
 
 SKELETON_DIR = "flashbios"
-DBUS_SERVICE_${PN} += "org.openbmc.control.Flash.service"
-SYSTEMD_SERVICE_${PN} += "obmc-flash-init.service"
+DBUS_SERVICE:${PN} += "org.openbmc.control.Flash.service"
+SYSTEMD_SERVICE:${PN} += "obmc-flash-init.service"