ARM: at91: enable ssc on at91sam9n12ek board

Enable ssc on at91sam9n12ek board
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/boot/dts/at91sam9n12ek.dts

@@ -38,6 +38,10 @@ dbgu: serial@fffff200 {
 				status = "okay";
 			};
 
+			ssc0: ssc@f0010000 {
+				status = "okay";
+			};
+
 			i2c0: i2c@f8010000 {
 				status = "okay";