ARM: dts: sun4i: Add new ba10-tvbox board

The ba10 tvbox is an A10 based android tvbox, with 512M RAM, 8G nand flash,
rtl8188ctv usb wifi 1 USB-A receptacle hooked up to an EHCI/OHCI controller,
1 USB-A receptacle hooked up to the OTG and 100Mbit ethernet using a
rtl8201 phy.

The PCB is labelled ba10 hence I've named the board ba10-tvbox. It is used
in noname allwinner A10 tv-boxes.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>