RDMA/core: Fixes infiniband sysctl bounds

Bound infiniband iwcm and ucma sysctl writings between SYSCTL_ZERO
and SYSCTL_INT_MAX.

The proc_handler has thus been updated to proc_dointvec_minmax.

Signed-off-by: Nicolas Bouchinet <nicolas.bouchinet@ssi.gouv.fr>
Link: https://patch.msgid.link/20250224095826.16458-6-nicolas.bouchinet@clip-os.org


Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Reviewed-by: Joel Granados <joel.granados@kernel.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>