op-build update Nov 12th

Updated versions: firestone.xml and hostboot
Tested on HW (IPL to petitboot)
diff --git a/openpower/package/firestone-xml/firestone.mk b/openpower/package/firestone-xml/firestone.mk
index 01fe5ea..e6ae9c7 100644
--- a/openpower/package/firestone-xml/firestone.mk
+++ b/openpower/package/firestone-xml/firestone.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-FIRESTONE_XML_VERSION ?= 73a89761834bc0243a40d3e76db8bf86db38e1eb
+FIRESTONE_XML_VERSION ?= 4966cbc7e498001c598d738908fbd6596dddb6e7
 FIRESTONE_XML_SITE ?= $(call github,open-power,firestone-xml,$(FIRESTONE_XML_VERSION))
 
 FIRESTONE_XML_LICENSE = Apache-2.0