drm/tegra: fb: Add error codes to error messages
drm/tegra: fb: Add error codes to error messages

This helps in determining what errors happened at specifics points in
the initialization sequence.

Signed-off-by: Thierry Reding <3055038c414aef68bf32c33b8118623e7554e0f2@nvidia.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs