cwc: change the multiple CA PID handling
cwc/mpegts dvb service: prevent auto-changes for prefcaid (see issue #2075)
service: fix some compiler warnings
mpegts dvb service: add CA PID filter (lock) mode 2 to force CA PID

- works for both cwc and capmt
cwc: little log fix (auto-reconnect)...
mpegts service: Add documentation for Lock Pref. CA PID
FreeBSD 2/X Fix path for dtv-scan-tables
Merge remote-tracking branch 'upstream/master' into freebsd

* upstream/master:
  mpegts service: Add documentation for Lock Pref. CA PID
  cwc: little log fix (auto-reconnect)...
  mpegts dvb service: add CA PID filter (lock) mode 2 to force CA PID
  service: fix some compiler warnings
  cwc/mpegts dvb service: prevent auto-changes for prefcaid (see issue #2075)
  cwc: change the multiple CA PID handling