kitakami-common: sepolicy: Added one property to kernel.te.

Change-Id: I8c69f3e87eb2c8a6eb25cdccacf2e27093b37dd7

sepolicy/vendor/kernel.te

 allow kernel block_device:blk_file rw_file_perms;
 allow kernel device:dir create_dir_perms;
+allow kernel self:capability dac_override;
 allow kernel self:socket create;
 allow kernel tmpfs:dir create_dir_perms;
 allow kernel tmpfs:file create_file_perms;