TEGRA_DEVICE_SETTINGS lives now in tegra-common-post.h.

This removes custom TEGRA_DEVICE_SETTINGS for all tegra boards providing
video output, except seaboard, which was fixed by Stephen already.

Cc: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>