[U-Boot] dm-spi: Convert to driver model

[Mugunthan V N]

On Saturday 31 October 2015 02:17 AM, Jagan Teki wrote:
> 
> ti_qspi.c

I had already converted this driver and posted [1] Last week. Will be
submitting a v2 shortly.

[1]: http://lists.denx.de/pipermail/u-boot/2015-October/231800.html

Regards
Mugunthan V N