mediatek: disable unsupported background radar detection

MT7915 requires an additional antenna for background radar scanning.
Disable this feature in the following devices that do not have a
separate DFS antenna:
  linksys,e8450
  ruijie,rg-ew3200gx-pro
  xiaomi,redmi-router-ax6s

Signed-off-by: Shiji Yang <[email protected]>

target/linux/mediatek/dts/mt7622-linksys-e8450.dtsi

@@ -336,9 +336,11 @@
 };
 
 &slot0 {
-	wmac1: mt7915@0,0 {
+	wmac1: wifi@0,0 {
+		compatible = "mediatek,mt76";
 		reg = <0x0000 0 0 0 0>;
 		ieee80211-freq-limit = <5000000 6000000>;
+		mediatek,disable-radar-background;
 	};
 };
 

target/linux/mediatek/dts/mt7622-ruijie-rg-ew3200gx-pro.dts

@@ -164,10 +164,12 @@
 };
 
 &slot0 {
-	mt7915@0,0 {
+	wifi@0,0 {
+		compatible = "mediatek,mt76";
 		reg = <0x0000 0 0 0 0>;
 		mediatek,mtd-eeprom = <&factory 0x5000>;
 		ieee80211-freq-limit = <5000000 6000000>;
+		mediatek,disable-radar-background;
 	};
 };
 

target/linux/mediatek/dts/mt7622-xiaomi-redmi-router-ax6s.dts

@@ -328,6 +328,7 @@
 		reg = <0x0000 0 0 0 0>;
 		mediatek,mtd-eeprom = <&factory 0x5000>;
 		ieee80211-freq-limit = <5000000 6000000>;
+		mediatek,disable-radar-background;
 	};
 };