Add SELinux policy for edgetpu_native device_config prop

The new android property namespace will store the configurations which are set on the server side and read by the EdgeTpu HAL.

Notes:
* This CL is similar to nnapi_native CL: https://android-review.git.corp.google.com/c/platform/system/sepolicy/+/1844919
* The read permission of EdgeTpu HAL will be added in another internal CL.

Test: mm
Bug: 243553703
Bug: 246401730
Change-Id: I5705f679148b313d919f334c51e31f7645aca82a
diff --git a/private/property_contexts b/private/property_contexts
index fdc6f89..7c9f81f 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -250,6 +250,7 @@
 persist.device_config.camera_native.                u:object_r:device_config_camera_native_prop:s0
 persist.device_config.configuration.                u:object_r:device_config_configuration_prop:s0
 persist.device_config.connectivity.                 u:object_r:device_config_connectivity_prop:s0
+persist.device_config.edgetpu_native.               u:object_r:device_config_edgetpu_native_prop:s0
 persist.device_config.input_native_boot.            u:object_r:device_config_input_native_boot_prop:s0
 persist.device_config.lmkd_native.                  u:object_r:device_config_lmkd_native_prop:s0
 persist.device_config.media_native.                 u:object_r:device_config_media_native_prop:s0