mm/damon/sysfs: remove parameters of damon_sysfs_region_alloc()

mainline inclusion
from mainline-v6.2-rc6
commit 1f719814
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I6MRUG

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1f71981408ef5696ad8544f282d336d4fc60a807

--------------------------------

'damon_sysfs_region_alloc()' is always called with zero-filled 'struct
damon_addr_range', because the start and end addresses should set by
users.  Remove unnecessary parameters of the function and simplify the
body by using 'kzalloc()'.

Link: https://lkml.kernel.org/r/20221026225943.100429-7-sj@kernel.org


Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ze Zuo <zuoze1@huawei.com>