drm/vc4: Add another reg to HDMI debug dumping.

This is also involved in the HDMI setup sequence so it's nice to see
it.

Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Eric Anholt 2016-02-12 15:16:56 -08:00
commit 936f1a53f3