boards: add support for eval-adin2111ebz

Add support for ADI EVAL-ADIN2111EBZ.

Tested samples:
      * hello_world
      * blinky
      * dhcpv4_client

Co-developed-by: Philip Molloy <pmolloy@baylibre.com>
Signed-off-by: Philip Molloy <pmolloy@baylibre.com>
Signed-off-by: Angelo Dureghello <adureghello@baylibre.com>