Suggested by Rob Herring.  We still support the old names for
compatibility with downstream android dt files.

Cc: Rob Herring <robh@kernel.org>
Signed-off-by: NRob Clark <robdclark@gmail.com>
Reviewed-by: NEric Anholt <eric@anholt.net>
Acked-by: NRob Herring <robh@kernel.org>