Allow system_server and shell to start gsid on-demand.

gsid is started lazily to reduce memory pressure. It can be started
either via gsi_tool (invoked by adb shell), or by DynamicAndroidService
via system_server.

Bug: 126622385
Test: no denials running "gsi_tool status"
Change-Id: I90a5f3f28fe4f294fb60e7c87a62e76716fbd5c0
diff --git a/private/system_server.te b/private/system_server.te
index 22dcac8..7540d56 100644
--- a/private/system_server.te
+++ b/private/system_server.te
@@ -585,6 +585,7 @@
 # ctl interface
 set_prop(system_server, ctl_default_prop)
 set_prop(system_server, ctl_bugreport_prop)
+set_prop(system_server, ctl_gsid_prop)
 
 # cppreopt property
 set_prop(system_server, cppreopt_prop)