[U-Boot] fsl_i2c: increase I2C timeout values and make them configurable

[Timur Tabi]

Joakim Tjernlund wrote:

> Looking a bit harder at the table I don't understand some entries, where does
> the entries with dfsr != 1 come from? They don't look like any table in AN2919

They're all calculated.  I entered the algorithm into a spreadsheet and determined every possible combination of DFSR and FDR.  The values of DFSR==22 are for frequencies that are normally not published.

-- 
Timur Tabi
Linux kernel developer at Freescale