Devicetree bindings are already specified in Linux kernel documentation.
Instead of maintaining same dt bindings in U-Boot doc specify path to dt
bindings in Linux kernel & documenting specific changes that are in U-Boot.
Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>