Without this, a failed attempt to change option bytes will silently appear to succeed but without actually changing the option bytes (confusingly, the option bytes will still read back as if they had been changed until a reboot as well!). Change-Id: Id529c6c384a8a16be75f5702310670d99d8fac79 Signed-off-by: Christopher Head <chead@zaber.com> Reviewed-on: http://openocd.zylin.com/5418 Tested-by: jenkins Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>