Move systemd bbappend to match base layer path

yocto requires bbappend paths match the path of the
layer that is being appended to. This was working with
prior yocto releases but seems like the latest now
enforces this rule.

Testing: Verified override conf files are back in witherspoon
image.

Resolves openbmc/openbmc#3316

Change-Id: Idaace35871276ad20ef4d5bef51974fcdfbce9f1
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
4 files changed