Add /system/bin/traced_relay to file_contexts

traced_relay is a service that takes the place of traced
in a guest VM and relays the producer connections to the
host tracing service. (aosp/2646664)

The service requires the same permissions as traced.

Bug: 333835162
Bug: 340402999
Test: Run traced_relay in a guest VM
Change-Id: Ifc7854e0d3ebaf0f9021cf455a2433037525a0bc
diff --git a/contexts/plat_file_contexts_test b/contexts/plat_file_contexts_test
index a0933b4..0bd8e07 100644
--- a/contexts/plat_file_contexts_test
+++ b/contexts/plat_file_contexts_test
@@ -407,6 +407,7 @@
 /system/bin/traced                                                traced_exec
 /system/bin/traced_perf                                           traced_perf_exec
 /system/bin/traced_probes                                         traced_probes_exec
+/system/bin/traced_relay                                          traced_exec
 /system/bin/heapprofd                                             heapprofd_exec
 /system/bin/uncrypt                                               uncrypt_exec
 /system/bin/update_verifier                                       update_verifier_exec
diff --git a/private/file_contexts b/private/file_contexts
index ffc06f2..f0832f3 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -339,6 +339,7 @@
 /system/bin/traced        u:object_r:traced_exec:s0
 /system/bin/traced_perf        u:object_r:traced_perf_exec:s0
 /system/bin/traced_probes        u:object_r:traced_probes_exec:s0
+/system/bin/traced_relay        u:object_r:traced_exec:s0
 /system/bin/trace_redactor        u:object_r:trace_redactor_exec:s0
 /system/bin/heapprofd        u:object_r:heapprofd_exec:s0
 /system/bin/uncrypt     u:object_r:uncrypt_exec:s0