arm64: dts: qcom: msm8996: User generic node name for DMA

Qcom BAM DT spec expects generic DMA controller node name as
"dma-controller" to enable validations.
Signed-off-by: Kuldeep Singh <singh.kuldeep87k@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220410175056.79330-4-singh.kuldeep87k@gmail.com

arch/arm64/boot/dts/qcom/msm8996.dtsi

@@ -713,7 +713,7 @@ tsens1: thermal-sensor@4ad000 {
 			#thermal-sensor-cells = <1>;
 		};
 
-		cryptobam: dma@644000 {
+		cryptobam: dma-controller@644000 {
 			compatible = "qcom,bam-v1.7.0";
 			reg = <0x00644000 0x24000>;
 			interrupts = <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>;