Since with recent kernel version DTS moved to a dedicated directory,
it's required to split files to per kernel version to follow kernel
version directory structure.
Also makes use of DEVICE_DTS_DIR to target the correct DTS directory
based on the kernel version.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Refresh dts for kernel 6.1 support.
Changes:
- nbg6817 drop amba node and reference directly sdcc1.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>