latencytop: use correct kernel-doc format for func params

latencytop: use correct kernel-doc format for func params

Use a ':' instead of a '-' after function parameters to eliminate
kernel-doc warnings.

kernel/latencytop.c:177: warning: Function parameter or struct member 'tsk' not described in '__account_scheduler_latency'
../kernel/latencytop.c:177: warning: Function parameter or struct member 'usecs' not described in '__account_scheduler_latency'
../kernel/latencytop.c:177: warning: Function parameter or struct member 'inter' not described in '__account_scheduler_latency'

Link: https://lkml.kernel.org/r/20250111063019.910730-1-rdunlap@infradead.org
Fixes: ad0b0fd554df ("sched, latencytop: incorporate review feedback from Andrew Morton")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>