LPS-45189 - 508 Compliance - Add missing form field labels

Hey @natecavanaugh,

Attached is an update for http://issues.liferay.com/browse/LPS-45189.

NOTE: This is the first of two related pull requests.  The changes to the labels can be found at https://github.com/natecavanaugh/liferay-portal/pull/2289

Please let me know if you have any questions.  Thanks!