drm/i915/bios: ignore HDMI on port A

drm/i915/bios: ignore HDMI on port A

The hardware state readout oopses after several warnings when trying to
use HDMI on port A, if such a combination is configured in VBT. Filter
the combo out already at the VBT parsing phase.

v2: also ignore DVI (Ville)

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102889
Cc: [email protected]
Cc: Imre Deak <[email protected]>
Reviewed-by: Ville Syrjälä <[email protected]>
Tested-by: Daniel Drake <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]