ARM: dts: exynos: Correct whitespace and indentation issues in Exynos5

Remove double space after '=' and fix indentation in Exynos5250,
Exynos5410 and Exynos5420 DTS files.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200901075417.22481-7-krzk@kernel.org

arch/arm/boot/dts/exynos5250-arndale.dts

@@ -544,7 +544,7 @@ &i2c_9 {
 	samsung,i2c-max-bus-freq = <40000>;
 	samsung,i2c-slave-addr = <0x38>;
 
-	sata_phy_i2c:sata-phy@38 {
+	sata_phy_i2c: sata-phy@38 {
 		compatible = "samsung,exynos-sataphy-i2c";
 		reg = <0x38>;
 	};