Merge branch 'kirkwood/defconfig' of git://git.infradead.org/users/jcooper/linux into late/kirkwood

From Jason Cooper:

defconfig:
 - update kirkwood_defconfig via 'make oldconfig'
 - Add all Kirkwood DT boards to the defconfig
 - enable SERIAL_OF_PLATFORM and ORION_WATCHDOG in kirkwood_defconfig

* 'kirkwood/defconfig' of git://git.infradead.org/users/jcooper/linux:
  ARM: Kirkwood: add DT boards to defconfig
  ARM: Kirkwood: update defconfig