Allow hidl_allocator_default service to set its own prop

This prop is read in its .rc file to stop the service. Otherwise,
evertyime the service exits, it is restarted.
We don't want it to be `oneshot` because under normal operation, it
should be restarted if it exits/crashes.

Test: remove kTempHidlSupport && m && launch_cvd
Bug: 218588089

Change-Id: I9a4c61778c244a08ff753689604e79168058dd4c

private/compat/34.0/34.0.ignore.cil

@@ -16,6 +16,7 @@
     hal_macsec_service
     hal_remotelyprovisionedcomponent_avf_service
     hal_threadnetwork_service
+    hidl_memory_prop
     hidraw_device
     virtual_camera_service
     ot_daemon_service

private/hal_allocator_default.te

@@ -3,3 +3,6 @@ hal_server_domain(hal_allocator_default, hal_allocator)
 
 type hal_allocator_default_exec, system_file_type, exec_type, file_type;
 init_daemon_domain(hal_allocator_default)
+
+# to force stop the service when it's not supported
+set_prop(hal_allocator_default, hidl_memory_prop)

private/property.te

@@ -60,6 +60,7 @@ system_internal_prop(sensors_config_prop)
 system_internal_prop(hypervisor_pvmfw_prop)
 system_internal_prop(hypervisor_virtualizationmanager_prop)
 system_internal_prop(game_manager_config_prop)
+system_internal_prop(hidl_memory_prop)
 
 # Properties which can't be written outside system
 system_restricted_prop(device_config_virtualization_framework_native_prop)

private/property_contexts

@@ -233,6 +233,9 @@ servicemanager.ready    u:object_r:servicemanager_prop:s0 exact bool
 # hwservicemanager properties
 hwservicemanager.       u:object_r:hwservicemanager_prop:s0
 
+# hidl_memory properties to intentionally force a shutdown
+hidl_memory.            u:object_r:hidl_memory_prop:s0
+
 # Common default properties for vendor, odm, vendor_dlkm, and odm_dlkm.
 init.svc.odm.           u:object_r:vendor_default_prop:s0
 init.svc.vendor.        u:object_r:vendor_default_prop:s0