arm64: dts: mediatek: mt8183: Fix unit address for scp reserved memory

The reserved memory for scp had node name "scp_mem_region" and also
without unit-address: change the name to "memory@(address)".
This fixes a unit_address_vs_reg warning.

Cc: stable@vger.kernel.org
Fixes: 1652dbf7 ("arm64: dts: mt8183: add scp node")
Link: https://lore.kernel.org/r/20231025093816.44327-6-angelogioacchino.delregno@collabora.comSigned-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

arch/arm64/boot/dts/mediatek/mt8183-evb.dts

@@ -31,7 +31,7 @@ reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
-		scp_mem_reserved: scp_mem_region {
+		scp_mem_reserved: memory@50000000 {
 			compatible = "shared-dma-pool";
 			reg = <0 0x50000000 0 0x2900000>;
 			no-map;

arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi

@@ -116,7 +116,7 @@ reserved_memory: reserved-memory {
 		#size-cells = <2>;
 		ranges;
 
-		scp_mem_reserved: scp_mem_region {
+		scp_mem_reserved: memory@50000000 {
 			compatible = "shared-dma-pool";
 			reg = <0 0x50000000 0 0x2900000>;
 			no-map;