Commit
6c973bdd6e5a5b476ce3d82cb61dd90e1ba210cb
by Pau Espin Pedrolbts: Run osmo-bts-trx with sched_rr priority
use a real time prio since it really needs to do stuff in ral time with
high prio. Use lower rt prio than fake_trx since that one is the most
important piece providing clock.
Change-Id: I0251ed3ec0645617cf4e9bcc03e75c805bf1634c