Update the KZM9D DTS command line to remove following cruft:
 - console=tty0 - no graphic support upstream anyway
 - earlyprintk= - not supported by the 8250-em driver anyway
 - mem= - this is provided via DT anyway
Signed-off-by: NMagnus Damm <damm@opensource.se>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

* Do not disable SUSPEND

  Suspend seems to work fine on the kzm9d.

  This is part of an effort reduce differences between mach-shmobile
  defconfigs with a view to using a common defconfig.

* Enable PM_RUNTIME

  This also seems to work fine on the kzm9d.

  This is part of an effort reduce differences between mach-shmobile
  defconfigs with a view to using a common defconfig.

* Move kernel command line from defconfig to dts.

  This brings us one small step closer to sharing defconfig
  between kzm9d and other boards.
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Use DT_MACHINE_START() on the emev2 based KZM9D board.

Also include a tiny DTS file to describe the board and
update the Kconfig dependencies to select CONFIG_USE_OF.

Update the SMP glue code to use OF for matching.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>