arm64: dts: arm: Use hyphen in node names

DTS coding style prefers hyphens instead of underscores in the node
names.  Change should be safe, because node names are not considered an
ABI.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Acked-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Message-Id: <20251223152457.155392-3-krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

Author: krzk

arch/arm64/boot/dts/arm/morello-fvp.dts

@@ -25,25 +25,25 @@
 		clock-output-names = "bp:clock24mhz";
 	};
 
-	block_0: virtio_block@1c170000 {
+	block_0: virtio-block@1c170000 {
 		compatible = "virtio,mmio";
 		reg = <0x0 0x1c170000 0x0 0x200>;
 		interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
 	};
 
-	net_0: virtio_net@1c180000 {
+	net_0: virtio-net@1c180000 {
 		compatible = "virtio,mmio";
 		reg = <0x0 0x1c180000 0x0 0x200>;
 		interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
 	};
 
-	rng_0: virtio_rng@1c190000 {
+	rng_0: virtio-rng@1c190000 {
 		compatible = "virtio,mmio";
 		reg = <0x0 0x1c190000 0x0 0x200>;
 		interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
 	};
 
-	p9_0: virtio_p9@1c1a0000 {
+	p9_0: virtio-p9@1c1a0000 {
 		compatible = "virtio,mmio";
 		reg = <0x0 0x1c1a0000 0x0 0x200>;
 		interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;