F40 blocking image max size bumps
    
    See https://pagure.io/fesco/issue/3122 . linux-firmware size
    increases have driven F40 image sizes over the current limits and
    we cannot find a practical way to get them back down. For the
    disk images, the Minimal image has never fit in 4 GiB or 4 GB
    so this limit has always been bogus. Workstation's limit was
    written to match the size specified in pungi config, but in fact
    pungi config was in power-of-two gibibytes while "GB" in this
    document is to be read as power-of-ten gigabytes, so they do not
    match. We intend for the limit to be 16 power-of-ten gigabytes,
    to fit on a typical "16 GB" USB stick, and patches are in progress
    to make it possible to specify this in Oz.
    
    This implements the recommendations from
    https://pagure.io/fesco/issue/3122#comment-893698 and the
    Workstation live size bump previously approved by @catanzaro:
    
    1. Everything and Server netinst max sizes to 1 GB
    2. Workstation live max size to 2.3 GB
    3. Minimal disk image max size to 8 GB
    4. Workstation disk image max size to 16 GB
    
    Additionally, it clarifies that the disk image max sizes are to
    be read as applying to the uncompressed image size. This is the
    only sensible way, as it's the uncompressed image that gets
    written to a physical install medium when using one.
    
    Signed-off-by: Adam Williamson <awilliam@redhat.com>