Merge branch 'liquidio-standardization-and-cleanup'

Rick Farrington says:

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liquidio: standardization and cleanup

This patchset corrects some non-standard macro usage.

1. Replaced custom MIN macro with use of standard 'min_t'.
2. Removed cryptic and misleading macro 'CAST_ULL'.

change log:
V1 -> V2:
  1. Add driver cleanup of macro 'CAST_ULL'.
V2 -> V3:
  1. Remove extra parentheses from previous usage of macro 'CAST_ULL'.
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Signed-off-by: David S. Miller <davem@davemloft.net>