ARM: tegra: Allow boards to override boot target devices

Boards may not support all the boot target devices in the default list
for Tegra devices. Allow a board to override the list and default to the
standard list only if the board hasn't specified one itself.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
1 file changed