arm64: dts: amlogic: Add Amlogic T7 reset controller

Add the device node and related header file
for Amlogic T7 reset controller.

Signed-off-by: Zelong Dong <zelong.dong@amlogic.com>
Signed-off-by: Kelvin Zhang <kelvin.zhang@amlogic.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240422-t7-reset-v2-3-cb82271d3296@amlogic.com


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