powerpc: dts: t1042d4rdb: add FMan v3 nodes

Add the FMan v3 nodes for the T1042D4RDB. The nodes are copied over with
little modification from the Linux kernel source code.

Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>