media: staging: rkisp1: cap: fix value written to uv swap register in selfpath

The value RKISP1_CIF_MI_XTD_FMT_CTRL_SP_CB_CR_SWAP should be
set to the register instead of masking with ~BIT(1)

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>