dt-bindings: arm: mrvl: Document MMP3 compatible string

Marvel MMP3 is a successor to MMP2, containing similar peripherals with two
PJ4B cores.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Reviewed-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Lubomir Rintel 2019-06-21 14:20:59 +02:00
commit 95aecb71b8