Add foo_LICENSE_FILES for all OpenPOWER projects that are missing them

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
diff --git a/openpower/package/habanero-xml/habanero-xml.mk b/openpower/package/habanero-xml/habanero-xml.mk
index 165f63d..66f2791 100644
--- a/openpower/package/habanero-xml/habanero-xml.mk
+++ b/openpower/package/habanero-xml/habanero-xml.mk
@@ -8,6 +8,7 @@
 HABANERO_XML_SITE ?= $(call github,open-power,habanero-xml,$(HABANERO_XML_VERSION))
 
 HABANERO_XML_LICENSE = Apache-2.0
+HABANERO_XML_LICENSE_FILES = LICENSE
 HABANERO_XML_DEPENDENCIES = hostboot openpower-mrw common-p8-xml
 
 HABANERO_XML_INSTALL_IMAGES = YES