t210b01: add emc support

Signed-off-by: Thomas Makin <halorocker89@gmail.com>

arch/arm64/boot/dts/nvidia/tegra210b01.dtsi

@@ -29,6 +29,16 @@
 		/delete-property/ pinctrl-names;
 	};
 
+	emc: external-memory-controller@7001b000 {
+		compatible = "nvidia,tegra210b01-emc";
+
+		clocks = <&bpmp 0>;
+		clock-names = "emc";
+
+		nvidia,bpmp = <&bpmp>;
+		/delete-property/ operating-points-v2;
+	};
+
 	mmc@700b0600 {
 		nvidia,default-tap = <9>;
 		nvidia,default-trim = <13>;
@@ -81,6 +91,8 @@
 
 	bpmp@70016000 {
 		status = "okay";
+
+		#clock-cells = <1>;
 	};
 
 	usb@70090000 {