arm64: dts: ipq8074: Fix dma node name

DMA controller binding describes the node name should be dma-controller
and not dma, so fix the node name
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20201027164511.476312-10-vkoul@kernel.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/boot/dts/qcom/ipq8074.dtsi

@@ -276,7 +276,7 @@ sdhc_1: sdhci@7824900 {
 			status = "disabled";
 		};
 
-		blsp_dma: dma@7884000 {
+		blsp_dma: dma-controller@7884000 {
 			compatible = "qcom,bam-v1.7.0";
 			reg = <0x07884000 0x2b000>;
 			interrupts = <GIC_SPI 238 IRQ_TYPE_LEVEL_HIGH>;
@@ -372,7 +372,7 @@ blsp1_i2c3: i2c@78b7000 {
 			status = "disabled";
 		};
 
-		qpic_bam: dma@7984000 {
+		qpic_bam: dma-controller@7984000 {
 			compatible = "qcom,bam-v1.7.0";
 			reg = <0x07984000 0x1a000>;
 			interrupts = <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;