media: venus: Add framework support for AR50_LITE video core

The AR50_LITE is a simplified variant of the AR50 video core, designed for
power and cost-efficient platforms.

It supports hardware-accelerated decoding of H.264, HEVC, and VP9 formats,
and provides encoding support for H.264 and HEVC.

This commit prepares the framework to enable the AR50_LITE (it does not
enable it).

Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>