[PATCH 00/16] Further I2C Kconfig migrations

[Tom Rini]

Continuing on top of the last series I posted, this migrates still more
symbols and updates the README a bit.  There's still more that could be
done, but we're close to the end of what's only slightly painful to
migrate.  I think a small 3rd round, on top of the forthcoming sunxi
related updates is doable.