iPXE: Update stable version to the last commit of July 2016

Change-Id: I804d5a9100fdfea48383aaf5dc0eb154eda78f4d
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16255
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
diff --git a/payloads/external/iPXE/Kconfig b/payloads/external/iPXE/Kconfig
index aa8d92d..67b2111 100644
--- a/payloads/external/iPXE/Kconfig
+++ b/payloads/external/iPXE/Kconfig
@@ -42,12 +42,12 @@
 	depends on BUILD_IPXE
 
 config IPXE_STABLE
-	bool "2016.2"
+	bool "2016.7"
 	help
 	  iPXE uses a rolling release with no stable version, for
 	  reproducibility, use the last commit of a given month as the
 	  'stable' version.
-	  This is iPXE from the end of February, 2016.
+	  This is iPXE from the end of July, 2016.
 
 config IPXE_MASTER
 	bool "master"
diff --git a/payloads/external/iPXE/Makefile b/payloads/external/iPXE/Makefile
index 7e43bf8..8e07936 100644
--- a/payloads/external/iPXE/Makefile
+++ b/payloads/external/iPXE/Makefile
@@ -13,9 +13,9 @@
 ## GNU General Public License for more details.
 ##
 
-# 2016.2 - Last commit of February 2016
+# 2016.7 - Last commit of July 2016
 # When updating, change the name both here and in payloads/external/iPXE/Kconfig
-STABLE_COMMIT_ID=99b5216b1c71dba22dab734e0945887525493cde
+STABLE_COMMIT_ID=2afd66eb55996500499eb3bcc39c66ff042679c8
 
 TAG-$(CONFIG_IPXE_MASTER)=origin/master
 TAG-$(CONFIG_IPXE_STABLE)=$(STABLE_COMMIT_ID)