arm64: dts: amlogic: c3: use correct compatible for gpio_intc node

This fixes the following:
interrupt-controller@4080: compatible: 'oneOf' conditional failed, one must be fixed:
	['amlogic,meson-gpio-intc', 'amlogic,c3-gpio-intc'] is too long
	'amlogic,meson-gpio-intc' is not one of ['amlogic,meson8-gpio-intc', 'amlogic,meson8b-gpio-intc', 'amlogic,meson-gxbb-gpio-intc', 'amlogic,meson-gxl-gpio-intc', 'amlogic,meson-axg-gpio-intc', 'amlogic,meson-g12a-gpio-intc', 'amlogic,meson-sm1-gpio-intc', 'amlogic,meson-a1-gpio-intc', 'amlogic,meson-s4-gpio-intc', 'amlogic,c3-gpio-intc', 'amlogic,t7-gpio-intc']
	'amlogic,meson-gpio-intc' was expected

Tested-by: Christian Hewitt <christianshewitt@gmail.com>
Link: https://lore.kernel.org/r/20240606-topic-amlogic-upstream-bindings-fixes-dts-v1-9-62e812729541@linaro.org


Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>