arm64: dts: allwinner: use capital "OR" for multiple licenses in SPDX

Documentation/process/license-rules.rst and checkpatch expect the SPDX
identifier syntax for multiple licenses to use capital "OR".  Correct it
to keep consistent format and avoid copy-paste issues.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20240208105301.129005-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>

arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-cb1-manta.dts

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
 /*
  * Copyright (C) 2023 Martin Botka <martin.botka@somainline.org>.
  */

arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-cb1.dtsi

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
 /*
  * Copyright (C) 2023 Martin Botka <martin.botka@somainline.org>.
  */

arch/arm64/boot/dts/allwinner/sun50i-h616-bigtreetech-pi.dts

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
 /*
  * Copyright (C) 2023 Martin Botka <martin@biqu3d.com>.
  */