pcengines/apu2: add support for apu4 variant

apu4 is new version of PC Engines platform, which contains 4 Ethernet
ports and 4GB of RAM. In functional way it is very similar to apu3.

Platform tested with booting Linux voyage (kernel 3.16.7) using USB and
SeaBIOS as 1st stage and GRUB as 2nd stage bootloader. Also Debian
(kernel 4.8.5) using iPXE.

Change-Id: Ia7a9971d25d4ecc215c392be1e46dc1c10129ba7
Signed-off-by: Piotr Król <piotr.krol@3mdeb.com>
Reviewed-on: https://review.coreboot.org/22629
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

0 files changed, 0 insertions, 0 deletions