dt-bindings: arm: samsung: Document Exynos9810 and starlte board binding

dt-bindings: arm: samsung: Document Exynos9810 and starlte board binding

Add the compatibles for Exynos9810 SoC and samsung,starlte board to the
list of boards. Samsung Galaxy S9 (SM-G960F, codenamed starlte)
is a mobile phone, released in 2018.

Co-developed-by: Maksym Holovach <nergzd@nergzd723.xyz>
Signed-off-by: Maksym Holovach <nergzd@nergzd723.xyz>
Signed-off-by: Markuss Broks <markuss.broks@gmail.com>
Link: https://lore.kernel.org/r/20241026-exynos9810-v3-6-b89de9441ea8@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>