[PATCH 2/2] ARM: dts: st: spear: fix dtbs warning on spear thermal sensor

[Gopi Krishna Menon]

Running DTBS checks on st/spear1340-evb.dtb results in the following
warning:

thermal@e07008c4 (st,thermal-spear1340): Unevaluated properties are not allowed ('thermal_flags' was unexpected)
  from schema $id: http://devicetree.org/schemas/thermal/st,thermal-spear1340.yaml

Rename thermal_flags to st,thermal-flags to fix the warning.

Signed-off-by: Gopi Krishna Menon <krishnagopi487@xxxxxxxxx>
---
Note:
* This patch is part of the GSoC2026 application process for device tree bindings conversions
* https://github.com/LinuxFoundationGSoC/ProjectIdeas/wiki/GSoC-2026-Device-Tree-Bindings

 arch/arm/boot/dts/st/spear13xx.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/st/spear13xx.dtsi b/arch/arm/boot/dts/st/spear13xx.dtsi
index 159e941708ca..97357680dd51 100644
--- a/arch/arm/boot/dts/st/spear13xx.dtsi
+++ b/arch/arm/boot/dts/st/spear13xx.dtsi
@@ -332,7 +332,7 @@ wdt@ec800620 {
 			thermal@e07008c4 {
 				compatible = "st,thermal-spear1340";
 				reg = <0xe07008c4 0x4>;
-				thermal_flags = <0x7000>;
+				st,thermal-flags = <0x7000>;
 			};
 		};
 	};
-- 
2.52.0