trace: Use tracing_reset_online_cpus in more places

Impact: cleanup

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Frédéric Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --cc kernel/trace/trace_branch.c
Simple merge

diff --cc kernel/trace/trace_functions_graph.c
Simple merge

diff --cc kernel/trace/trace_nop.c
Simple merge