Changes from the latest stable gnuton build (384.10_2-gnuton3):
- build: circleci: cleaning up the lines which generate changelogs from git log
- build: circleci: use circle_tag as current tag when extracting changelogs
- build: circleci: parametrized changelog file path
- build: circleci: fixed typo
- Merging new changes imported from RT-AC88U branch
- build: circleci: moved out circleci from sdk platfomrm
- build: circleci: try to build fw for rt-ac88u in the cloud
- build: circleci: parametrized release dir
- build: circleci: fix releasedir path for src-rt-7.14.114.x
- build: circleci: do not let ci fail if md5 file is missing
- build: circleci: set release dir and model to dsl-ac68u
- ipsec: Enable IPSEC on DSL-AC68U