When user sets dev->ctl_invert, driver writes negative values to
SAA7134_DEC_LUMA_CONTRAST and SAA7134_DEC_CHROMA_SATURATION,
but general code that initializes decorder ignores that
Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>