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-palmetto/recipes-phosphor/configuration/palmetto-yaml-config.bb b/meta-ibm/meta-palmetto/recipes-phosphor/configuration/palmetto-yaml-config.bb
index 44b4760..c5c5bfd 100644
--- a/meta-ibm/meta-palmetto/recipes-phosphor/configuration/palmetto-yaml-config.bb
+++ b/meta-ibm/meta-palmetto/recipes-phosphor/configuration/palmetto-yaml-config.bb
@@ -22,10 +22,10 @@
         ${D}${datadir}/${BPN}/ipmi-sensors.yaml
 }
 
-FILES_${PN}-dev = " \
+FILES:${PN}-dev = " \
     ${datadir}/${BPN}/ipmi-extra-properties.yaml \
     ${datadir}/${BPN}/ipmi-fru-read.yaml \
     ${datadir}/${BPN}/ipmi-sensors.yaml \
     "
 
-ALLOW_EMPTY_${PN} = "1"
+ALLOW_EMPTY:${PN} = "1"