arm64: dts: apm-shadowcat: Move slimpro nodes out of "simple-bus" node

The slimpro nodes are not MMIO devices, so they don't belong under a
"simple-bus" node. Move them to the top level.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250919161509.1292227-1-robh@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm64/boot/dts/apm/apm-shadowcat.dtsi

@@ -224,6 +224,16 @@
 		clock-frequency = <50000000>;
 	};
 
+	i2cslimpro {
+		compatible = "apm,xgene-slimpro-i2c";
+		mboxes = <&mailbox 0>;
+	};
+
+	hwmonslimpro {
+		compatible = "apm,xgene-slimpro-hwmon";
+		mboxes = <&mailbox 7>;
+	};
+
 	soc {
 		compatible = "simple-bus";
 		#address-cells = <2>;
@@ -577,16 +587,6 @@
 					0x0 0x7 0x4>;
 		};
 
-		i2cslimpro {
-			compatible = "apm,xgene-slimpro-i2c";
-			mboxes = <&mailbox 0>;
-		};
-
-		hwmonslimpro {
-			compatible = "apm,xgene-slimpro-hwmon";
-			mboxes = <&mailbox 7>;
-		};
-
 		serial0: serial@10600000 {
 			compatible = "ns16550";
 			reg = <0 0x10600000 0x0 0x1000>;