Drashna Jaelre 4df6b7ba19 Fix for the Split Common I2C code's SCL_CLOCK issue (#3474)
* Fix the SLC_CLOCK setting for the Split Common code

Make the SCL_CLOCK setting configurable per board, since some use different settings
And change the Iris  to use 100000L instead of 400000L

* Add SCL_CLOCK variable to documentation

* Change SCL_CLOCK default to 100000L
2018-07-25 08:26:10 -07:00
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