Merge branch 'dpaa_eth-rss'

Madalin Bucur says:

====================
Add RSS to DPAA 1.x Ethernet driver

This patch set introduces Receive Side Scaling for the DPAA Ethernet
driver. Documentation is updated with details related to the new
feature and limitations that apply.
Added also a small fix.

v2: removed a C++ style comment
v3: move struct fman to header file to avoid exporting a function
v4: addressed compilation issues introduced in v3
====================

Signed-off-by: David S. Miller <davem@davemloft.net>