Add exec to /var/lib/ipa/sysrestore for install status inquiries
installutils.is_ipa_configured() previously required root
privileges to see whether there were sysrestore or filestore
files. The directory was mode 0700 so this function always returned
False for non-root users.
Relaxing permissions is is needed to run the tests as the jenkins user.
Backed-up files retain their original FS permissions so this
shouldn't disclose any previously unreadable backed-up configuration.
Reviewed-By: Tomas Krizek <firstname.lastname@example.org>
Reviewed-By: Stanislav Laznicka <email@example.com>