Add persist properties for app profiling itself.

Bug: 204601121
Test: build and boot.
Change-Id: If731c77dd6f2b587178b4f6b8a908df2d96e5d9a
diff --git a/private/property_contexts b/private/property_contexts
index 54eb0a4..040ffe6 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -44,6 +44,8 @@
 log.tag                 u:object_r:log_tag_prop:s0
 log.tag.WifiHAL         u:object_r:wifi_log_prop:s0
 security.perf_harden    u:object_r:shell_prop:s0
+persist.simpleperf.profile_app_uid              u:object_r:shell_prop:s0
+persist.simpleperf.profile_app_expiration_time  u:object_r:shell_prop:s0
 security.lower_kptr_restrict u:object_r:lower_kptr_restrict_prop:s0
 service.adb.root        u:object_r:shell_prop:s0
 service.adb.tls.port    u:object_r:adbd_prop:s0