Uniformize "pixfmt" variables to "pix".
Change "current_fmt" & "dcmi_fmt" variables to variables
with "sd_" prefix to explicitly refer to subdev format.
Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>