systemd: install "core platform" overrides into /usr

I really want to support the use case of an empty /etc by default, so it
makes a lot of sense to move our overrides (which are, however, platform
defaults for us) into /usr.

Change-Id: I9ce0e3bbffbec4572e72be5a2a64755272077a7d
5 files changed
tree: 361a527a288442e3e9fd5095a13587b4f986a99d
  1. Config.in
  2. board/
  3. configs/
  4. external.desc
  5. external.mk
  6. package/