Allow perfetto to access gpu_frequency tracepoint in user

This will allow Perfetto to capture GPU frequency changes
on the target, which is useful to graphics developers
using Perfetto to profile graphics HW usage.

Bug: 136062452
Change-Id: Idb7870b2f674f1359ef3b4487dbeff190b394248
diff --git a/private/genfs_contexts b/private/genfs_contexts
index 2a8f7ad..3ad0edb 100644
--- a/private/genfs_contexts
+++ b/private/genfs_contexts
@@ -214,6 +214,7 @@
 genfscon tracefs /events/power/cpu_idle/                                 u:object_r:debugfs_tracing:s0
 genfscon tracefs /events/power/clock_set_rate/                           u:object_r:debugfs_tracing:s0
 genfscon tracefs /events/power/cpu_frequency_limits/                     u:object_r:debugfs_tracing:s0
+genfscon tracefs /events/power/gpu_frequency/                            u:object_r:debugfs_tracing:s0
 genfscon tracefs /events/cpufreq_interactive/                            u:object_r:debugfs_tracing:s0
 genfscon tracefs /events/vmscan/mm_vmscan_direct_reclaim_begin/          u:object_r:debugfs_tracing:s0
 genfscon tracefs /events/vmscan/mm_vmscan_direct_reclaim_end/            u:object_r:debugfs_tracing:s0
@@ -255,6 +256,7 @@
 genfscon debugfs /tracing/events/power/cpu_idle/                                 u:object_r:debugfs_tracing:s0
 genfscon debugfs /tracing/events/power/clock_set_rate/                           u:object_r:debugfs_tracing:s0
 genfscon debugfs /tracing/events/power/cpu_frequency_limits/                     u:object_r:debugfs_tracing:s0
+genfscon debugfs /tracing/events/power/gpu_frequency/                            u:object_r:debugfs_tracing:s0
 genfscon debugfs /tracing/events/cpufreq_interactive/                            u:object_r:debugfs_tracing:s0
 genfscon debugfs /tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/          u:object_r:debugfs_tracing:s0
 genfscon debugfs /tracing/events/vmscan/mm_vmscan_direct_reclaim_end/            u:object_r:debugfs_tracing:s0