Add support for Macronix 25L8005.  Tested on a HP t5325 Thin Client.
Signed-off-by: NMartin Michlmayr <tbm@cyrius.com>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>