Add the SoC Family, device ID and revision to /sys/bus/soc.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Link: https://lkml.kernel.org/r/1393955507-26436-1-git-send-email-andrew@lunn.chSigned-off-by: NJason Cooper <jason@lakedaemon.net>