ARM: tegra: Add device-tree for ASUS Transformer Pad TF701T

Add device-tree for Tegra114-based ASUS Transformer Pad TF701T (K00C)
tablet.

Link: https://wiki.postmarketos.org/wiki/ASUS_Transformer_Pad_(TF701T)_(asus-tf701t)


Signed-off-by: Anton Bambura <jenneron@protonmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[treding@nvidia.com: cosmetic fixups]
Signed-off-by: Thierry Reding <treding@nvidia.com>