[PATCH] m25p80, spi-nor: add SFDP detect method

[Rafał Miłecki]

On 4 February 2015 at 16:50, Jim-Ting Kuo <jimtingkuo at gmail.com> wrote:
> The serial flash discoverable parameters (SFDP) is needed to
> spi nor devices for some specific features. I added some sfdp
> structure and detect method. And I hope the method will be
> useful in the future.
>
> The code have been tested on lower version Linux and can
> successfully work with Macronix chips. So I also modified the
> chip support list of Macronix.

Please resend without broken white spaces, so we can review/apply it.