ARM: kirkwood: rename kirwood-nsa310-common to 3x0-common

 Rename the include file kirkwood-nsa310-common.dtsi as
 it is now also used for NSA320. There is also an NSA325
 but that appears not to be as similar so is unlikely to
 want to share an include file.

Signed-off-by: Adam Baker <linux@baker-net.org.uk>
Link: https://lkml.kernel.org/r/53447978.2020206@baker-net.org.uk
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
diff --git a/arch/arm/boot/dts/kirkwood-nsa310a.dts b/arch/arm/boot/dts/kirkwood-nsa310a.dts
index ead7a36..d0a6025 100644
--- a/arch/arm/boot/dts/kirkwood-nsa310a.dts
+++ b/arch/arm/boot/dts/kirkwood-nsa310a.dts
@@ -1,6 +1,6 @@
 /dts-v1/;
 
-#include "kirkwood-nsa310-common.dtsi"
+#include "kirkwood-nsa3x0-common.dtsi"
 
 /*
  * There are at least two different NSA310 designs. This variant does