tests, profiles: Use IEC prefixes for binary multiples Use IEC 80000-13 prefixes for binary multiples of bytes (KiB, MiB, etc.) rather than SI prefixes for decimal multiples of bytes (KB, MB, etc.) in places in which the code has fixed divide by 1024, 1024*1024, >>20, etc. and is clearly always using binary multiples. Signed-off-by: Jens Axboe <axboe@fb.com>