Merge branch 'net-phy-cleanups'

Weihang Li says:

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net: phy: fix some coding-style issues

Make some cleanups according to the coding style of kernel.

Changes since v1:
- Update commit description of #1 and #3.
- Avoid changing the indentation in #2.
- Change a group of if-else statement into switch from #4 and put it into
  a single patch.
- Put '|' at the end of line in #5 and #7.
- Avoid deleting spaces in definition of 'settings' in #5.
- Drop #8 from the series which needs more discussion with David.
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Signed-off-by: David S. Miller <davem@davemloft.net>