Return MAX_JIFFY_OFFSET for all the values truncated when val (u64) is
passed to msecs_to_jiffies (u32). This aligns with how very large
millisecond values get translated into MAX_JIFFY_OFFSET.
Fixes: b96b5c6708 ("sysctl: Replace do_proc_do{int,ulong,uint}vec with do_proc_vec")
Suggested-by: Kuniyuki Iwashima <kuniyu@google.com>
Signed-off-by: Joel Granados <joel.granados@kernel.org>