bpf: Rename __htab_percpu_map_update_elem to htab_map_update_elem_in_place

Rename __htab_percpu_map_update_elem to htab_map_update_elem_in_place,
and add a new percpu argument for the helper to support in-place update
for both per-cpu htab and htab of maps.

Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20250401062250.543403-3-houtao@huaweicloud.com


Signed-off-by: Alexei Starovoitov <ast@kernel.org>