netopeer2 and rousette were starting as soon as confd had a PID, while
confd was still loading the startup config via sr_replace_config(). This
held a write lock on the running datastore. A test calling test/reset
shortly after the NETCONF port opened would have its own sr_replace_config()
block on that lock for up to 60 s, at which point sysrepo timed out the
whole RPC with "SHM event 'rpc' processing timed out".
Fix by adding the usr/bootstrap condition to both management servers so
they don't accept connections until confd signals that bootstrap is complete.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>