ARM: ux500: Add UART support to the u9540 Device Tree

Add the 3 UART nodes required to enable serial ports on the u9540.
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

arch/arm/boot/dts/u9540.dts

@@ -21,6 +21,17 @@
 	};
 
 	soc-u9500 {
-	};
 
+		uart@80120000 {
+			status = "okay";
+		};
+
+		uart@80121000 {
+			status = "okay";
+		};
+
+		uart@80007000 {
+			status = "okay";
+		};
+	};
 };