ASoC: fsl_ssi: Bringing up the SSI port in multi-channel TDM mode

Hi,
   I just posted a little write up for helping people get started with
the Freescale SSI port in TDM mode.

https://medium.com/@caleb_22836/how-to-get-the-mx6-ssi-port-up-and-running-in-tdm-mode-dbce02a15e81

I'm just posting here in case anybody is searching the google for this
information and finds this post.

(Also, it assumes that v4.15 will be released by the time anybody
actually uses it...)

-Caleb