Set osmo-bts pcu-socket config to point to run dir

Otherwise osmo-bts stores the socket file in /tmp. If an earlier
instance doesn't finish cleanly, the file is left there and a new
instance will fail to start because it cannot create a new socket file
in the same place.

Change-Id: I5a1da23c45a4ac496fe765e0d78c52dae3e7808b
4 files changed