arm64: dts: imx93: update anatop node

The anatop module produces PLL and OSC for Clock Controller Module. Since
the binding doc has been updated to clock-controller for this module,
Let's also update the device tree node.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx93.dtsi

@@ -449,9 +449,10 @@ mediamix: power-domain@44462400 {
 				};
 			};
 
-			anatop: anatop@44480000 {
-				compatible = "fsl,imx93-anatop", "syscon";
+			clock-controller@44480000 {
+				compatible = "fsl,imx93-anatop";
 				reg = <0x44480000 0x2000>;
+				#clock-cells = <1>;
 			};
 
 			tmu: tmu@44482000 {