dt-bindings: gpio: gpio-davinci: Increase maxItems in gpio-line-names

gpio-line-names really depends on ti,ngpios. However, the maximum value
we have seen across the board is on K2G and da850 platforms where it can
be upto 144.

Link: https://lore.kernel.org/linux-arm-kernel/20221115200357.qa2rvw3clbz7unzq@symptom/T/#u
Fixes: c830b87a761b ("dt-bindings: gpio: gpio-davinci: Convert to json-schema")
Reported-by: Robert Nelson <robertcnelson@gmail.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

dt-bindings: gpio: gpio-davinci: Convert to json-schema

Convert gpio-davinci dt-binding documentation from txt to yaml format.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>