Import pending patch "arm: dts: mt7622: force high-speed mode for uart"
from Weijie Gao <weijie.gao@mediatek.com> fixing the UART problems on
MT7622 which made it hard to use the U-Boot menu on devices with this
SoC.
This patch is also contained in commit
c09eb08dad ("uboot-mediatek: add support for MT798x platforms")
in the development branch.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
