Merge branch 'DPAA-Ethernet-changes'

Madalin Bucur says:

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DPAA Ethernet changes

v2: remove excess braces

Here are some more changes for the DPAA 1.x area.
In summary, these changes use pages for the receive buffers and
for the scatter-gather table fed to the HW on the Tx path, perform
a bit of cleanup in some convoluted parts of the code, add some
minor fixes related to DMA (un)mapping sequencing for a not so
common scenario, add a device link that removes the interfaces
when the QMan portal in use by them is removed.
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Signed-off-by: David S. Miller <davem@davemloft.net>