Merge branch 'mlxsw-updates'

Ido Schimmel says:

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mlxsw: Various updates

Patch #1 removes deadcode reported by Coverity.

Patch #2 adds a shutdown method in the PCI driver to ensure the kexeced
kernel starts working with a device that is in a sane state.
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Signed-off-by: David S. Miller <davem@davemloft.net>