meta-ibm: prep for new override syntax

Change-Id: I9116ed7260e369136acb39eec15075db2d4dbeba
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/meta-ibm/meta-romulus/recipes-kernel/linux/linux-aspeed_%.bbappend b/meta-ibm/meta-romulus/recipes-kernel/linux/linux-aspeed_%.bbappend
index 664d7e1..b978009 100644
--- a/meta-ibm/meta-romulus/recipes-kernel/linux/linux-aspeed_%.bbappend
+++ b/meta-ibm/meta-romulus/recipes-kernel/linux/linux-aspeed_%.bbappend
@@ -1,2 +1,2 @@
-FILESEXTRAPATHS_prepend_romulus := "${THISDIR}/${PN}:"
-SRC_URI_append_romulus = " file://romulus.cfg"
+FILESEXTRAPATHS:prepend:romulus := "${THISDIR}/${PN}:"
+SRC_URI:append:romulus = " file://romulus.cfg"