LPS-48360:While Exporting and importing Role's Permission not working

(1)this fix has been tested on ee-6.2.x.but there is a parent issue in trunk.
(2)so this fix may be test after this parent issue is solved,but i have tested the fix by noting some code.
(3)parent issue ticket link:https://issues.liferay.com/browse/LPS-48319.