sm8350-common: sepolicy: allow camera hal to access persist camera data

sepolicy/vendor/file_contexts

@@ -3,6 +3,9 @@
 /vendor/bin/batterysecret		u:object_r:batterysecret_exec:s0
 /mnt/vendor/persist/subsys(/.*)?                u:object_r:persist_subsys_file:s0
 
+# Camera
+/mnt/vendor/persist/camera(/.*)?   u:object_r:camera_persist_file:s0
+
 # Power
 /sys/devices/virtual/touch/tp_dev/double_tap                       u:object_r:vendor_sysfs_double_tap:s0
 

sepolicy/vendor/hal_camera_default.te

 type vendor_camera_sensor_prop, property_type;
+type camera_persist_file, vendor_persist_type, file_type;
 
 set_prop(hal_camera_default, vendor_camera_sensor_prop)
+r_dir_file(hal_camera_default, camera_persist_file)