meta-ibm: prep for new override syntax

Change-Id: I9116ed7260e369136acb39eec15075db2d4dbeba
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/meta-ibm/recipes-phosphor/ipmi/phosphor-ipmi-config.bbappend b/meta-ibm/recipes-phosphor/ipmi/phosphor-ipmi-config.bbappend
index 7898a10..d490c08 100644
--- a/meta-ibm/recipes-phosphor/ipmi/phosphor-ipmi-config.bbappend
+++ b/meta-ibm/recipes-phosphor/ipmi/phosphor-ipmi-config.bbappend
@@ -1,4 +1,4 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
 
 # Calculate the auxiliary firmware revision to be updated in the dev_id.json
 # file. It is calculated from the VERSION_ID field which currently has two
@@ -16,7 +16,7 @@
 unset do_patch[noexec]
 do_patch[depends] = "os-release:do_populate_sysroot"
 
-python do_patch_ibm-ac-server() {
+python do_patch:ibm-ac-server() {
     import json
     import re
     from shutil import copyfile