arm64: dts: add DPAA FMan nodes

Add the DPAA 1.x FMan nodes for the ARM based platforms.

Using separate files for each port as not all ports are used on all
devices. Different numbering of ports is also possible on different
devices.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>