driver: net: fsl-mc: Add DPAA2 commands to manage MC

Management complex Firmware, DPL and DPC are depolyed during u-boot boot
sequence.

Add new DPAA2 commands to manage Management Complex (MC) i.e. start mc, aiop
and apply DPL from u-boot command prompt.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>