sched,doc: sched_debug_verbose cmdline should be sched_verbose

The cmdline should include sched_verbose but not sched_debug_verbose
as sched_debug_verbose is only the variant name in code.

Fixes: 9406415 ("sched/debug: Rename the sched_debug parameter to sched_verbose")
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210504105344.31344-1-song.bao.hua@hisilicon.com

Author: Barry Song

Documentation/scheduler/sched-domains.rst

@@ -74,7 +74,7 @@ for a given topology level by creating a sched_domain_topology_level array and
 calling set_sched_topology() with this array as the parameter.
 
 The sched-domains debugging infrastructure can be enabled by enabling
-CONFIG_SCHED_DEBUG and adding 'sched_debug_verbose' to your cmdline. If you
+CONFIG_SCHED_DEBUG and adding 'sched_verbose' to your cmdline. If you
 forgot to tweak your cmdline, you can also flip the
 /sys/kernel/debug/sched/verbose knob. This enables an error checking parse of
 the sched domains which should catch most possible errors (described above). It