dt-bindings: pinctrl: qcom,sa8775p-tlmm: restrict number of interrupts

SA8775p TLMM pin controller comes with only one interrupt, so narrow
the number of interrupts previously defined in common TLMM bindings.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20231208215534.195854-3-krzysztof.kozlowski@linaro.org


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>