arm64: dts: qcom: msm8996: Fix venus iommu nodename error

Fix the following error/warn seen with make dtbs_check

arm,smmu-venus@d40000: $nodename:0: 'arm,smmu-venus@d40000' does not match '^iommu@[0-9a-f]*'
arm,smmu-venus@d40000: clock-names:0: 'bus' was expected
arm,smmu-venus@d40000: clock-names:1: 'iface' was expected

by rename nodename to "iommu".
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Link: https://lore.kernel.org/r/20200106102305.27059-1-stanimir.varbanov@linaro.org
[bjorn: Added padding of address to 8 digits]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

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

@@ -1161,9 +1161,9 @@ mdp_smmu: iommu@d00000 {
 			power-domains = <&mmcc MDSS_GDSC>;
 		};
 
-		venus_smmu: arm,smmu-venus@d40000 {
+		venus_smmu: iommu@d40000 {
 			compatible = "qcom,msm8996-smmu-v2", "qcom,smmu-v2";
-			reg = <0xd40000 0x20000>;
+			reg = <0x00d40000 0x20000>;
 			#global-interrupts = <1>;
 			interrupts = <GIC_SPI 286 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 335 IRQ_TYPE_LEVEL_HIGH>,