ARM: dts: imx6q-icore-rqs: Update model to support Dual SOM

Engicam i.CoreM6 Dual and Quad SOM's use same dts file, hence
update model name to add Dual and also added full mode decsription.

Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6q-icore-rqs.dts

@@ -45,7 +45,7 @@
 #include "imx6qdl-icore-rqs.dtsi"
 
 / {
-	model = "Engicam i.CoreM6 Quad SOM";
+	model = "Engicam i.CoreM6 Quad/Dual RQS Starter Kit";
 	compatible = "engicam,imx6-icore-rqs", "fsl,imx6q";
 
 	sound {