net: dc2114x: Add Kconfig entries

Add Kconfig entries for the dc2114x driver and convert various boards.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
26 files changed