ARM: kirkwood: Move NSA310 common parts to include file

ARM: kirkwood: Move NSA310 common parts to include file

 Move definitions that are common to both nsa-310.dts and
 nsa310a.dts and that will also be used in nsa320 into
 kirkwood-nsa310-common.dtsi. Also rename the USB
 Regulator to remove the word off from its name as the
 state of a regulator shouldn't be part of its name.

Signed-off-by: Adam Baker <linux@baker-net.org.uk>
Link: https://lkml.kernel.org/r/1396820569-3841-1-git-send-email-linux@baker-net.org.uk
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>