Single XML package rather than one per platform

This saves us a *lot* of copy&pasted build foo and replaces it with a couple
of config options that can be set in menuconfig.

This makes adding a new platform a much smaller operation, requiring fewer
changes that are scattered throughout the buildroot tree.

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
diff --git a/openpower/package/openpower-pnor/Config.in b/openpower/package/openpower-pnor/Config.in
index f0b7f31..a94f72c 100644
--- a/openpower/package/openpower-pnor/Config.in
+++ b/openpower/package/openpower-pnor/Config.in
@@ -8,14 +8,7 @@
         select BR2_PACKAGE_OCC
         select BR2_PACKAGE_CAPP_UCODE
         select BR2_PACKAGE_IMA_CATALOG
-        select BR2_PACKAGE_ZAIUS_XML if (BR2_OPENPOWER_XML_PACKAGE = "zaius-xml")
-        select BR2_PACKAGE_WITHERSPOON_XML if (BR2_OPENPOWER_XML_PACKAGE = "witherspoon-xml")
-        select BR2_PACKAGE_ROMULUS_XML if (BR2_OPENPOWER_XML_PACKAGE = "romulus-xml")
-        select BR2_PACKAGE_BARRELEYE_XML if (BR2_OPENPOWER_XML_PACKAGE = "barreleye-xml")
-        select BR2_PACKAGE_FIRESTONE_XML if (BR2_OPENPOWER_XML_PACKAGE = "firestone-xml")
-        select BR2_PACKAGE_GARRISON_XML if (BR2_OPENPOWER_XML_PACKAGE = "garrison-xml")
-        select BR2_PACKAGE_HABANERO_XML if (BR2_OPENPOWER_XML_PACKAGE = "habanero-xml")
-        select BR2_PACKAGE_PALMETTO_XML if (BR2_OPENPOWER_XML_PACKAGE = "palmetto-xml")
+	select BR2_PACKAGE_MACHINE_XML
         help
             Utilites for building a targeting binary image
 
@@ -29,11 +22,6 @@
         help
             String used to define configuration name
 
-config BR2_OPENPOWER_XML_PACKAGE
-        string "Name of xml/targeting package"
-        help
-            String defines the xml/targeting package used
-
 config BR2_OPENPOWER_PNOR_FILENAME
         string "Name of pnor file to be created"
         help