arm64: dts: mediatek: mt8186: fix address warning for ADSP mailboxes

Fix warnings reported by dtbs_check :

arch/arm64/boot/dts/mediatek/mt8186.dtsi:1163.35-1168.5: Warning (simple_bus_reg):
 /soc/mailbox@10686000: simple-bus unit address format error, expected "10686100"
arch/arm64/boot/dts/mediatek/mt8186.dtsi:1170.35-1175.5: Warning (simple_bus_reg):
 /soc/mailbox@10687000: simple-bus unit address format error, expected "10687100"

by having the right bus address as node name.

Fixes: 379cf0e6 ("arm64: dts: mediatek: mt8186: Add ADSP mailbox nodes")
Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com>
Link: https://lore.kernel.org/r/20231204135533.21327-1-eugen.hristev@collabora.comSigned-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

arch/arm64/boot/dts/mediatek/mt8186.dtsi

@@ -1148,14 +1148,14 @@ adsp: adsp@10680000 {
 			status = "disabled";
 		};
 
-		adsp_mailbox0: mailbox@10686000 {
+		adsp_mailbox0: mailbox@10686100 {
 			compatible = "mediatek,mt8186-adsp-mbox";
 			#mbox-cells = <0>;
 			reg = <0 0x10686100 0 0x1000>;
 			interrupts = <GIC_SPI 361 IRQ_TYPE_LEVEL_HIGH 0>;
 		};
 
-		adsp_mailbox1: mailbox@10687000 {
+		adsp_mailbox1: mailbox@10687100 {
 			compatible = "mediatek,mt8186-adsp-mbox";
 			#mbox-cells = <0>;
 			reg = <0 0x10687100 0 0x1000>;