Add sched_process_free to debugfs_tracing label

Bug: 169279846
Test: atest bpf-time-in-state-tests
Test: verified that the time-in-state BPF prog still loads into
      the kernel with no errors and gets attached without errors
Change-Id: If74632ae6f72e0371fea844d4ba7bef9260d1bdb
diff --git a/private/genfs_contexts b/private/genfs_contexts
index 83f76ca..74a8434 100644
--- a/private/genfs_contexts
+++ b/private/genfs_contexts
@@ -221,6 +221,7 @@
 genfscon tracefs /events/sched/sched_blocked_reason/                     u:object_r:debugfs_tracing:s0
 genfscon tracefs /events/sched/sched_cpu_hotplug/                        u:object_r:debugfs_tracing:s0
 genfscon tracefs /events/sched/sched_process_exit/                       u:object_r:debugfs_tracing:s0
+genfscon tracefs /events/sched/sched_process_free/                       u:object_r:debugfs_tracing:s0
 genfscon tracefs /events/cgroup/                                         u:object_r:debugfs_tracing:s0
 genfscon tracefs /events/power/cpu_frequency/                            u:object_r:debugfs_tracing:s0
 genfscon tracefs /events/power/cpu_idle/                                 u:object_r:debugfs_tracing:s0