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>
2 files changed