dvbtee: add FIXME comment to a line of code that generates a warning.
dvbtee: add FIXME comment to a line of code that generates a warning.

warning: variable set but not used [-Wunused-but-set-variable]
(to be fixed later on)

Signed-off-by: Michael Krufky <00524723a60798c74a43fcc620c25dd7b9ece078@linuxtv.org>

anshul1912/libdvbtee,mkrufky/libdvbtee,pashamesh/libdvbtee,mkrufky/libdvbtee,anshul1912/libdvbtee,pashamesh/libdvbtee,mkrufky/libdvbtee,pashamesh/libdvbtee,anshul1912/libdvbtee,mkrufky/libdvbtee,mkrufky/libdvbtee