firmware: ocetontx2: Add CN10K MAC management module to MUB

commit 24ccfc6bc682207feb76f9a494774ee6d4340ed7 from
git@git.assembla.com:cavium/WindRiver.linux.git

The module is an interface to control MAC addresses assigned
to each CN10K network device available in the system.
The change adds marvell_mac_mgmt driver under Marvell
Utility Bus control.

Signed-off-by: Wojciech Bartczak <wbartczak@marvell.com>
Change-Id: I186e691d9ac9d7a3316846a82af0ceafd5bda81d
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/kernel/linux/+/120410
Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: Ruiqiang Hao <Ruiqiang.Hao@windriver.com>