Systemd 208 update work

TODO:
* Test/remove: systemd-187-reintroduce-support-for-deprecated-oom.patch

Done:
* Added systemd-libs package and removed udev package
* Drop systemd-console-* packages as those are hw specific and should be handled by
  hw adaptation.
* Drop upstreamed patches:
  - systemd-187-support-glob-EnvironmentFile.patch
  - systemd-187-fix-ftbfs.patch
* Rebased patches:
  - systemd-187-install-test-bin.patch to system-208-install-test-binaries.patch
  - systemd-185-pkgconfigdir.patch to systemd-208-pkgconfigdir.patch
  - systemd-187-video.patch to systemd-208-video.patch

[update] Update to systemd version 208.

Signed-off-by: Marko Saukko <marko.saukko@jollamobile.com>