building/devices/rockpi4.rst: The "RockPi4" wiki page has been removed and combined with "Rock4" so update our external link so it still works.
building/gits/build.rst: It looks like the commit that added rockpi4 (6dc91eea01c215c08e0c77f625e1aa36301509d0) build documentation added Rock Pi 4 to the list/table in "Platforms Supported" but did not add it to the table in the "Current Version" section. This PR adds it to the second table.
building/devices/rockpi4.rst
: The "RockPi4" wiki page has been removed and combined with "Rock4" so update our external link so it still works.building/gits/build.rst
: It looks like the commit that added rockpi4 (6dc91eea01c215c08e0c77f625e1aa36301509d0) build documentation added Rock Pi 4 to the list/table in "Platforms Supported" but did not add it to the table in the "Current Version" section. This PR adds it to the second table.