dt-bindings: pinctrl: samsung: Add missing constraint for Exynos8895 interrupts

Expect only one interrupt on Exynos8895 wake-up pin controller.

Fixes: e2d58d1 ("dt-bindings: pinctrl: samsung: add exynos8895-wakeup-eint compatible")
Acked-by: Rob Herring (Arm) <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Krzysztof Kozlowski <[email protected]>

Author: krzk

Documentation/devicetree/bindings/pinctrl/samsung,pinctrl-wakeup-interrupt.yaml

@@ -103,6 +103,7 @@ allOf:
                 enum:
                   - samsung,exynos5433-wakeup-eint
                   - samsung,exynos7885-wakeup-eint
+                  - samsung,exynos8895-wakeup-eint
     then:
       properties:
         interrupts: