arm64: mvebu: Add PCI support to DB-88F8040 board

arm64: mvebu: Add PCI support to DB-88F8040 board

This patch adds PCI support to the Marvell Armada-8K devel board.
Additionally the Intel E1000 ethernet driver is enabled so that
network support is available on this board, even without the
internal network interfaces being supported (yet).

Signed-off-by: Stefan Roese <[email protected]>
Cc: Nadav Haklai <[email protected]>
Cc: Neta Zur Hershkovits <[email protected]>
Cc: Kostya Porotchkin <[email protected]>
Cc: Omri Itach <[email protected]>
Cc: Igal Liberman <[email protected]>
Cc: Haim Boot <[email protected]>
Cc: Hanna Hawa <[email protected]>