* rename 4.12 staging to 4.12
* verified there are no version number changes between 4.12-staging and
new 4.12 final
* create 4.13-staging from former 4.12-staging
* update orbit to latest snapshot
* sort entries in S20190819183153.tpd
Change-Id: I1c3992b1dae2282a8c057e1453a6b63664d09207
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>