Update the test-purpose DAMON sysfs control Python module to support DAMOS
stats.

Link: https://lkml.kernel.org/r/20240207203134.69976-3-sj@kernel.orgSigned-off-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>