dt-bindings: pinctrl: qcom: Add egpio function for sa8775p

Add egpio function for TLMM pinctrl on sa8775p platform.

Signed-off-by: Wasim Nazir <quic_wasimn@quicinc.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/20250312072509.3247885-2-quic_wasimn@quicinc.com


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