beaglebone: Use a relative path for systemd's unit file

...so that it's clearly visible in the target FS, and so that it matches
the other symlink which happens to be present in the rootfs, too.

Change-Id: I9001aaabf81af3a25c94322a1767224e00f33961
1 file changed
tree: 2a0c1d35c920439ca3ab8e3918ee724eba5fdb91
  1. Config.in
  2. board/
  3. configs/
  4. external.desc
  5. external.mk
  6. package/