docs: move m68k architecture documentation under Documentation/arch/

2023-04-10T22:46:11Z

Architecture-specific documentation is being moved into Documentation/arch/ as a way of cleaning up the top-level documentation directory and making the docs hierarchy more closely match the source hierarchy. Move Documentation/m68k into arch/ and fix all in-tree references. Reviewed-by: Geert Uytterhoeven Signed-off-by: Jonathan Corbet

kernel.git/Documentation/arch/m68k, branch linux-6.4.y

docs: move m68k architecture documentation under Documentation/arch/