[coreboot-gerrit] Patch merged into coreboot/master: payloads/external/Memtest86Plus: Update stable to latest commit

the following patch was just integrated into master:
commit 89189685570d33958aa27764614ab92f39b7c844
Author: Martin Roth 
Date:   Wed Sep 14 17:52:15 2016 -0700

payloads/external/Memtest86Plus: Update stable to latest commit

This brings in two additional changes:
    - Use OBJCOPY if available.
    - Fix strstr() indent and rewrite to not call strlen() on each char.

Change-Id: Id13dfda28c545332fce8282e849f379bf50629b9
    Signed-off-by: Martin Roth 
    Reviewed-on: https://review.coreboot.org/16605
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel 
    Reviewed-by: Patrick Georgi

See https://review.coreboot.org/16605 for details.

-gerrit