ipq40xx: move DSA and ethernet driver to 5.15 specific directory
As a preparation to move to 6.1, we need to move the DSA and ethernet
drivers to a 5.15 specific directory as 6.1 will use the latest patchset
that was sent upstream which is too hard to backport to 5.15.
Signed-off-by: Robert Marko <[email protected]>
Robert Marko