package/flashrom: security bump to version 0.9.9

Fixes buffer overflow:
https://mail.coreboot.org/pipermail/flashrom/2016-March/014523.html



Removed patch 0002-sys-io.h.patch, not needed anymore, hwaccess.h now
contains a similar fix:

  elif defined(__linux__) || defined(__GLIBC__)

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>