Merge branch 'dsa-mv88e6xxx-lockdep'

Andrew Lunn says:

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mv88e6xxx: Avoid false positive Lockdep splats

When acquiring the GPIO interrupt line for the switch, it is possible
to trigger lockdep splats. These are false positives, the mutex is in
a different IRQ descriptor. But fix it anyway, since it could mask
real locking issues.
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Signed-off-by: David S. Miller <davem@davemloft.net>