dvbtee: re-enable control of HdHomeRun devices

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
dvbtee: update documentation to include the -H option for HdHomeRun

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Merge branch 'hdhr' of github.com:mkrufky/libdvbtee