RFC: detect and manage power cut on MLC NAND

[Andrea Marson]

> 1) Technically speaking, it is possible to use an MLC memory in SLC mode, even if this is not recommended because MLC is not designed for this usage.
> 	There are devices that support SLC Mode.
Can you please indicate Micron part numbers supporting SLC mode? It 
would be really interesting to test these devices on our platforms.

Thank you,
Andrea