Merge branch 'z85230-cleanups'

Peng Li says:

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net: z85230: clean up some code style issues

This patchset clean up some code style issues.

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Change Log:
V1 -> V2:
1, fix the comments from Andrew, add commit message to [patch 04/11]
   about remove volatile.
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Signed-off-by: David S. Miller <davem@davemloft.net>