ZSTD-4054 Studio will not notify about maintenance (minor) update if
major update is also available but license is not valid - p2 bug related
to setting default value for
org.eclipse.equinox.p2.ui.sdk/showLatestVersion=false; new patch added
to update site

Signed-off-by: Natalia Bartol <natalia.b@zend.com>
Merge branch 'R3.8.2-patches' of git@github.com:zendtech/rt.equinox.p2.git into R3.8.2-patches