arm64: dts: qcom: qrb4210-rb1: add firmware-name qualifier to WiFi node

Add firmware-name property to the WiFi device tree node to specify
board-specific lookup directory.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240306-wcn3990-firmware-path-v2-4-f89e98e71a57@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Author: lumag

arch/arm64/boot/dts/qcom/qrb4210-rb2.dts

@@ -678,6 +678,7 @@
 	vdd-1.3-rfa-supply = <&vreg_l17a_1p3>;
 	vdd-3.3-ch0-supply = <&vreg_l23a_3p3>;
 	qcom,ath10k-calibration-variant = "Thundercomm_RB2";
+	firmware-name = "qrb4210";
 
 	status = "okay";
 };