dm: tegra: Move nyan-big, jetson-tk1/tx1, beaver to livetree

Change these board to use a live device tree after relocation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1
Tested-by: Stephen Warren <swarren@nvidia.com>