ARM: dts: exynos: Fix some typos in comments

Change 'specfic' to 'specific', 'optiosn' to 'options' and remove
duplicated 'are listed' in DTSI heading comments.

Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Link: https://lore.kernel.org/r/20230519190625.7844-2-aweber.kernel@gmail.com


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>