[Enhancement] [RHEL/6, RHEL/7] Add remediation for ensure_redhat_gpgkey_installed rule
[BugFix] [RHEL/6, RHEL/7] Fix OVAL check for ensure_redhat_gpgkey_installed rule
Merge pull request #342 from iankko/rhel_ensure_redhat_gpgkey_installed_remediation

[BugFix] [Enhancement] [RHEL/6, RHEL/7] Fix OVAL check & add remediation for ensure_redhat_gpgkey_installed_rule