Contrary to CFR (derotator frequency), which changes signedness
depending on inversion, CRL_FREQ does not.
Signed-off-by: NReinhard Nißl <rnissl@gmx.de>
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>