Add the ecc info for TC58NVG2S0F, TC58NVG3S0F, TC58NVG5D2 and TC58NVG6D2.

From these chips' datasheets, we know that:
   The TC58NVG2S0F and TC58NVG3S0F require 4bit ECC for per 512byte.
   The TC58NVG5D2 and TC58NVG6D2 require 40bits ECC for per 1024byte.
Signed-off-by: NHuang Shijie <b32955@freescale.com>
Signed-off-by: NBrian Norris <computersforpeace@gmail.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>