ARM: dts: sti: add the thermal sensor node within stih418

The STiH418 embedded the same sensor as the STiH410.
This commit adds the corresponding node, relying on the st_thermal
driver.

Signed-off-by: Alain Volmat <[e-mail]>
Reviewed-by: Patrice Chotard <[e-mail]>
Signed-off-by: Patrice Chotard <[e-mail]>

arch/arm/boot/dts/stih418.dtsi

···
 			assigned-clock-parents = <&clk_s_c0_pll1 0>;
 			assigned-clock-rates = <200000000>;
 		};
+
+		thermal@91a0000 {
+			compatible = "st,stih407-thermal";
+			reg = <0x91a0000 0x28>;
+			clock-names = "thermal";
+			clocks = <&clk_sysin>;
+			interrupts = <GIC_SPI 205 IRQ_TYPE_EDGE_RISING>;
+		};
 	};
 };