drm/bridge: dw-hdmi-qp: Handle platform supported formats and color depth

drm/bridge: dw-hdmi-qp: Handle platform supported formats and color depth

Extend struct dw_hdmi_qp_plat_data to include the supported display
output formats and maximum bits per color channel.  When provided by the
platform driver, use them to setup the HDMI bridge accordingly.

Additionally, improve debug logging in dw_hdmi_qp_bridge_atomic_enable()
to also show the current HDMI output format and bpc.

Acked-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20251021-rk3588-10bpc-v3-2-3d3eed00a6db@collabora.com