media: venus : Add default values for the control

V4l2 encoder compliance expecting default values of colorimetry
for the control.

Signed-off-by: Vikash Garodia <quic_vgarodia@quicinc.com>
Signed-off-by: Viswanath Boma <quic_vboma@quicinc.com>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>