ARM: Kirkwood: DT: Add missing vendor prefix

Add vendor prefixes to compatible strings where they are missing.

Both the I2C and MTD framework ignore the prefix, so adding them has
no effect on backwards compatibility.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lkml.kernel.org/r/1395492360-1865-6-git-send-email-andrew@lunn.ch


Signed-off-by: Jason Cooper <jason@lakedaemon.net>