mtd: nand: add Samsung's K9GBG08U0B to nand_ids table

Add the full description of the Samsung K9GBG08U0B NAND chip in the
nand_ids table so that we can later use the NAND ECC infos and ONFI timings
mode in controller drivers.

Signed-off-by: Petros Angelatos <petrosagg@gmail.com>