tegra-hda: Add HDMI/DP outputs 2-4 for Tegra186+

tegra-hda: Add HDMI/DP outputs 2-4 for Tegra186+

Declare the maximum four HDMI/DisplayPort outputs (PCM devices 3, 7,
8 and 9) so PipeWire can see every available port. The HDMI macro's
built-in ControlExists check ensures devices are only created when the
corresponding jack control exists, so SoCs with fewer outputs are
unaffected.

Link: https://lore.kernel.org/alsa-devel/20260416090600.2237882-1-sheetal@nvidia.com/
Signed-off-by: Sheetal <sheetal@nvidia.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>