maintainers: update for Marvell ARMADA
maintainers: update for Marvell ARMADA

update MRVL PMDs, Tomasz is no longer with semihalf

Signed-off-by: Liron Himi <df7a1fcdffe73785b04dbbbb050c783d856d9736@marvell.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk