feat(watchdog): add watchdog support

lin

2025-06-05 ed3dd9d3e7519a82bb871d5eedb24a2fa0c91f47

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android/out/
longan/.buildconfig
longan/kernel/linux-4.9/arch/arm64/boot/dts/sunxi/board.dts
longan/out/
android/device/softwinner/ceres-c3/fstab.sun50iw10p1.noverify
 
longan/device/.BoardConfig.mk
longan/device/config/chips/a133/configs/c3/sys_config.fex