ARM: dts: nxp: Align wifi node name with bindings

Since commit 3c3606793f ("dt-bindings: wireless: bcm4329-fmac: Use
wireless-controller.yaml schema"), bindings expect 'wifi' as node name:

  imx7d-remarkable2.dtb: bcrmf@1: $nodename:0: 'bcrmf@1' does not match '^wifi(@.*)?$'

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/nxp/imx/imx6qp-prtwd3.dts

@@ -384,7 +384,7 @@
 	#address-cells = <1>;
 	#size-cells = <0>;
 
-	brcmf: bcrmf@1 {
+	brcmf: wifi@1 {
 		reg = <1>;
 		compatible = "brcm,bcm4329-fmac";
 	};

arch/arm/boot/dts/nxp/imx/imx7d-remarkable2.dts

@@ -374,7 +374,7 @@
 	cap-power-off-card;
 	status = "okay";
 
-	brcmf: bcrmf@1 {
+	brcmf: wifi@1 {
 		reg = <1>;
 		compatible = "brcm,bcm4329-fmac";
 	};

arch/arm/boot/dts/nxp/mxs/imx28-btt3.dtsi

@@ -299,7 +299,7 @@
 	keep-power-in-suspend;
 	status = "okay";
 
-	wlan@1 {
+	wifi@1 {
 		reg = <1>;
 		compatible = "brcm,bcm4329-fmac";
 	};