arm64: dts: imx8qm-mek: delete A72 thermal zone

The A72 nodes have been deleted in this DTB. Removes the corresponding
thermal zone to ensure a successful build.
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8qm-mek.dts

@@ -22,6 +22,10 @@ cpus {
 		/delete-node/ cpu@101;
 	};
 
+	thermal-zones {
+		/delete-node/ cpu1-thermal;
+	};
+
 	memory@80000000 {
 		device_type = "memory";
 		reg = <0x00000000 0x80000000 0 0x40000000>;