ARM: dts: aspeed: adjust whitespace around '='

Fix whitespace coding style: use single space instead of tabs or
multiple spaces around '=' sign in property assignment.  No functional
changes (same DTB).
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220526204127.831853-1-krzysztof.kozlowski@linaro.org

arch/arm/boot/dts/aspeed-bmc-portwell-neptune.dts

@@ -24,17 +24,17 @@ memory@80000000 {
 	leds {
 		compatible = "gpio-leds";
 		postcode0 {
-			label="BMC_UP";
+			label = "BMC_UP";
 			gpios = <&gpio ASPEED_GPIO(H, 0) GPIO_ACTIVE_HIGH>;
 			default-state = "on";
 		};
 		postcode1 {
-			label="BMC_HB";
+			label = "BMC_HB";
 			gpios = <&gpio ASPEED_GPIO(H, 1) GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "heartbeat";
 		};
 		postcode2 {
-			label="FAULT";
+			label = "FAULT";
 			gpios = <&gpio ASPEED_GPIO(H, 2) GPIO_ACTIVE_HIGH>;
 		};
 		// postcode3-7 are GPIOH3-H7

arch/arm/boot/dts/aspeed-bmc-quanta-s6q.dts

@@ -65,19 +65,19 @@ leds {
 		compatible = "gpio-leds";
 
 		BMC_HEARTBEAT_N {
-			label="BMC_HEARTBEAT_N";
+			label = "BMC_HEARTBEAT_N";
 			gpios = <&gpio0 ASPEED_GPIO(P, 7) GPIO_ACTIVE_LOW>;
 			linux,default-trigger = "heartbeat";
 		};
 
 		BMC_LED_STATUS_AMBER_N {
-			label="BMC_LED_STATUS_AMBER_N";
+			label = "BMC_LED_STATUS_AMBER_N";
 			gpios = <&gpio0 ASPEED_GPIO(S, 6) GPIO_ACTIVE_LOW>;
 			default-state = "off";
 		};
 
 		FM_ID_LED_N {
-			label="FM_ID_LED_N";
+			label = "FM_ID_LED_N";
 			gpios = <&gpio0 ASPEED_GPIO(B, 5) GPIO_ACTIVE_LOW>;
 			default-state = "off";
 		};