Patch merged into coreboot/master: 017c215 pcengines/apu1: Add switch between UART and GPIO modes

the following patch was just integrated into master:
commit 017c2150d4a528c58a454705db74210477623a5f
Author: Kyösti Mälkki 
Date:   Mon May 11 22:53:19 2015 +0300

pcengines/apu1: Add switch between UART and GPIO modes

These are alternative customer options connected to J19 header.
    We need to avoid modifying devicetree.cb, so we fix devicetree
    for the super-io device-enables at runtime instead.

Change-Id: I04a79974b9bdf52b09ffc1b1362e201eab1ee011
    Signed-off-by: Kyösti Mälkki 
    Reviewed-on: http://review.coreboot.org/10178
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel 
    Reviewed-by: Patrick Georgi

See http://review.coreboot.org/10178 for details.

-gerrit