Merge branch 'nla_align-more'

Nicolas Dichtel says:

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netlink: align attributes when needed (patchset #1)

This is the continuation of the work done to align netlink attributes
when these attributes contain some 64-bit fields.

David, if the third patch is too big (or maybe the series), I can split it.
Just tell me what you prefer.
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Signed-off-by: David S. Miller <davem@davemloft.net>