soc: fsl: dpio: enable qbman CENA portal memory access

soc: fsl: dpio: enable qbman CENA portal memory access

Once we enable the cacheable portal memory, we need to do
cache flush for enqueue, vdq, buffer release, and management
commands, as well as invalidate and prefetch for the valid bit
of management command response and next index of dqrr.

Signed-off-by: Haiying Wang <Haiying.Wang@nxp.com>