dt-bindings: pinctrl: samsung: correct ExynosAutov920 wake-up compatibles

ExynosAutov920 SoC wake-up pin controller has different register layout
than Exynos7, thus it should not be marked as compatible.  Neither DTS
nor Linux driver was merged yet, so the change does not impact ABI.

Cc: Jaewon Kim <jaewon02.kim@samsung.com>
Fixes: 904140fa ("dt-bindings: pinctrl: samsung: use Exynos7 fallbacks for newer wake-up controllers")
Link: https://lore.kernel.org/r/20231210133915.42112-1-krzysztof.kozlowski@linaro.org


Reviewed-by: Jaewon Kim <jaewon02.kim@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>