ssc: rename ssc_seek_10 to ssc_locate_10

Rename ssc_seek_10 to ssc_locate_10.

Signed-off-by: Sebastian Herbszt <herbszt@gmx.de>
Signed-off-by: Mark Harvey <markh794@gmail.com>
Add two extra fields into MAM for multi-partition support

Signed-off-by: Mark Harvey <markh794@gmail.com>
Increment MAM struct version

MAM version is not really used at the moment..

Signed-off-by: Mark Harvey <markh794@gmail.com>