ARM: kirkwood: Add support second I2C bus and RTC on OpenBlocks A6

OpenBlocks A6 uses second I2C with RTC of s35390a.
This supports them.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
1 file changed