drm/msm/hdmi: use DRM HDMI Audio framework

In order to simplify the driver even further and to remove the
boilerplate code, rewrite the audio interface to use the DRM HDMI Audio
framework.

Audio InfoFames are controlled centrally via the DRM HDMI framework.
Correct InfoFrame data is programmed at the atomic_pre_enable() time (if
it was set before, drm_atomic_helper_connector_hdmi_update_infoframes()
takes care of writing all InfoFrames, including the Audio one.) or
during msm_hdmi_bridge_audio_prepare() when the new stream is started.

All audio data frame management is deferred to
msm_hdmi_bridge_audio_prepare() and msm_hdmi_bridge_audio_shutdown().

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/639663/
Link: https://lore.kernel.org/r/20250226-bridge-hdmi-connector-v8-7-340af24b35cc@linaro.org

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