2.2.x is LTS, so upgrade to latest release 2.2.20.
This upgrade fixes several CVEs such as CVE-2021-3281.
Also, CVE-2021-28658.patch is dropped as it's already in 2.2.20.
Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Trevor Gamblin <trevor.gamblin@windriver.com>