[media] saa7134: enable IR support for Hauppauge HVR-1150/1120

Enable the IR support for the Hauppauge HVR-1150 and HVR-1120.

Thanks to Fernando Laudares Camargos for testing the patch.

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: Fernando Laudares Camargos <fernando.laudares.camargos@gmail.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>