Merge branch 'dpaa2-switch-small-improvements'

Merge branch 'dpaa2-switch-small-improvements'

Ioana Ciornei says:

====================
dpaa2-switch: small improvements

This patch set consists of a series of small improvements on the
dpaa2-switch driver ranging from adding some more verbosity when
encountering errors to reorganizing code to be easily extensible.

Changes in v3:
- 4/8: removed the fixes tag and moved it to the commit message
- 5/8: specified that there is no user-visible effect
- 6/8: removed the initialization of the err variable

Changes in v2:
- No changes to the actual diff, only rephrased some commit messages and
  added more information.
====================

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