drm/bridge: adv7511: switch to the HDMI connector helpers

drm/bridge: adv7511: switch to the HDMI connector helpers

Rewrite the ADV7511 driver to use implementation provided by the DRM
HDMI connector framework, including the Audio and CEC bits. Drop the
in-bridge connector support and use drm_bridge_connector if the host
requires the connector to be provided by the bridge.

Note: currently only AVI InfoFrames are supported. Existing driver
doesn't support programming any other InfoFrames directly and Audio
InfoFrame seems to be programmed using individual bits and pieces rather
than programming it directly.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250517-drm-hdmi-connector-cec-v6-10-35651db6f19b@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>