ARM: tegra: Enable CPU DFLL on Nyan

Enable CPU DFLL node on Nyan Chromebooks. DFLL was previously disabled due
to Linux kernel CPUFreq driver which didn't support suspend-resume. That
problem was fixed years ago, but DFLL was never re-enabled.

Tested-by: Thomas Graichen <thomas.graichen@gmail.com> # T124 Nyan Big
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm/boot/dts/tegra124-nyan.dtsi

@@ -532,7 +532,7 @@ mmc@700b0600 { /* eMMC on this bus */
 
 	/* CPU DFLL clock */
 	clock@70110000 {
-		status = "disabled";
+		status = "okay";
 		vdd-cpu-supply = <&vdd_cpu>;
 		nvidia,i2c-fs-rate = <400000>;
 	};