Move DTS files newly created by patch files to files directory. This will make
these files much more maintainable.
Patching the kernel Makefile is unnecessary, as the DTS files specified in
DEVICE_DTS will be compiled by OpenWrt buildroot anyway.
Signed-off-by: Sungbo Eo <mans0n@gorani.run>
Acked-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
