arm64: dts: Add gpio_intc node for Amlogic-T7 SoCs

Add GPIO interrupt controller device.

Signed-off-by: Huqiang Qin <huqiang.qin@amlogic.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240222074640.1866284-4-huqiang.qin@amlogic.com