Update sensorservice SELinux policy.

-Use 'r_dir_file' macros to simplify policy lines.
  +This fixes a denial on sysfs:lnk_file.
-Remove 'servicemanager sensorservice' lines.
  +There should be no references to 'sensorservice:{dir,file}' since
   'sensorservice' is not a file label.

Bug: 27229987

Change-Id: Ib6d501680f789e940ff33ddfb4db16b946716823
1 file changed