arm64: tegra: Add DBB clock to EMC on Tegra264

The DBB clock is used by the EMC to enable the data path from various IP
blocks to external memory.

Signed-off-by: Thierry Reding <treding@nvidia.com>

Author: thierryreding

arch/arm64/boot/dts/nvidia/tegra264.dtsi

@@ -3428,8 +3428,9 @@
 				reg = <0x00 0x8800000 0x0 0x20000>,
 				      <0x00 0x8890000 0x0 0x20000>;
 				interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&bpmp TEGRA264_CLK_EMC>;
-				clock-names = "emc";
+				clocks = <&bpmp TEGRA264_CLK_EMC>,
+					 <&bpmp TEGRA264_CLK_DBB_UPHY0>;
+				clock-names = "emc", "dbb";
 
 				#interconnect-cells = <0>;
 				nvidia,bpmp = <&bpmp>;