add poweroff command

hc

2023-12-14 982b8cc116118b3463d3f332581945625722acd8

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config BR2_PACKAGE_DHCPDUMP
    bool "dhcpdump"
    select BR2_PACKAGE_LIBPCAP
    help
      A tool for monitoring dhcp requests using tcpdump.
 
      http://www.mavetju.org/unix/general.php