arm64: dts: mt8173: fix some indentation

Fix indentation nits to make mt8173.dtsi more consistent.
Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm64/boot/dts/mediatek/mt8173.dtsi

@@ -187,6 +187,5 @@ uart3: serial@11005000 {
 			status = "disabled";
 		};
 	};
-
 };