Merge "ARM: mediatek: defconfig changes for v3.20" from Matthias Brugger:

Add mediatek uart to multi_v7_defconfig

* tag 'v3.20-next-defconfig' of https://github.com/mbgg/linux-mediatek:
  ARM: Add mediatek SoC UART support in defconfig
Signed-off-by: Olof Johansson <olof@lixom.net>