Integration 2020 wk47

Merged Remi Hardy requested to merge integration_2020_wk47 into develop

MR939 : Nr rlc am bugfix w44
MR942 : Feature/make s1 mme port configurable
MR948 : nr: rlc: hotfix - forgot to store frame and subfram
MR959 : minor: remove a CPPCHECK error for NR RLC

Edited by Remi Hardy

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