op-build update August 25th

Updated versions: hostboot, hostboot-binaries, garrison-xml, and pnor.
Added patch to fix IPL issue on firestone.
Tested on habanero, palmetto, and firestone HW.  Garrison build only.
diff --git a/openpower/package/openpower-pnor/openpower-pnor.mk b/openpower/package/openpower-pnor/openpower-pnor.mk
index 658a949..0393564 100644
--- a/openpower/package/openpower-pnor/openpower-pnor.mk
+++ b/openpower/package/openpower-pnor/openpower-pnor.mk
@@ -8,7 +8,7 @@
 # make doesn't care for quotes in the dependencies.
 XML_PACKAGE=$(subst $\",,$(BR2_OPENPOWER_XML_PACKAGE))
 
-OPENPOWER_PNOR_VERSION ?= ed1682e10526ebd85825427fbf397361bb0e34aa
+OPENPOWER_PNOR_VERSION ?= 40e407735b317d0174645b7543e0a72019709ce2
 OPENPOWER_PNOR_SITE ?= $(call github,open-power,pnor,$(OPENPOWER_PNOR_VERSION))
 
 OPENPOWER_PNOR_LICENSE = Apache-2.0