[media] dvb uapi docs: enums are passed by value, not reference
Since 2015, the documentation for FE_DISEQC_SEND_BURST, FE_SET_TONE
and FE_SET_VOLTAGE are incorrectly saying that the enums are passed
by reference. They aren't: they're passed by value.
Fix the documentation to reflect reality.
Fixes:
81959d996a3b ("[media] DocBook: better document FE_DISEQC_SEND_BURST ioctl")
Fixes:
d6b6d346e560 ("[media] DocBook: better document FE_SET_VOLTAGE ioctl")
Fixes:
6dc59e7a195f ("[media] DocBook: better document FE_SET_TONE ioctl")
Reported-by: Thierry Lelegard <thierry.lelegard@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>