intel_edison_fab_c.c: Change default i2c bus on miniboard from 6 to 1
intel_edison_fab_c.c: Change default i2c bus on miniboard from 6 to 1

Since on most 3rd party breakout boards the i2c bus exposed is 1 and not 6, it
makes more sense to have that as the default i2c bus

Signed-off-by: Brendan Le Foll <3e0e8c4069934e8b47d99704927a85c66c0ceb33@intel.com>

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