media: venus: return P010 as preferred format for 10 bit decode

If bit depth is detected as 10 bit by firmware, return
P010 as preferred decoder format to the client.

Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Signed-off-by: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>