ramips: fix whitespace and comment issues in dts

Fix space vs. tabs issue and trainling whitespaces. Use C style
comments or drop the comments if they explain what is already to see in
the devicetree parameters.

Signed-off-by: Mathias Kresin <dev@kresin.me>

target/linux/ramips/dts/RT5350F-OLINUXINO.dtsi

@@ -3,10 +3,10 @@
 / {
 	compatible = "olimex,rt5350f-olinuxino", "ralink,rt5350-soc";
 
-    aliases {
-        serial0 = &uartlite;
-        serial1 = &uart;
-    };
+	aliases {
+		serial0 = &uartlite;
+		serial1 = &uart;
+	};
 };