Merge branch 'mlxsw-Two-small-updates'

Ido Schimmel says:

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mlxsw: Two small updates

Patch #1, from Amit, exposes the size of the key-value database (KVD)
where different entries (e.g., routes, neighbours) are stored in the
device. This allows users to understand how many entries can be
offloaded and is also useful for writing scale tests.

Patch #2 increases the number of IPv6 nexthop groups mlxsw can offload.
The problem and solution are explained in detail in the commit message.
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Signed-off-by: David S. Miller <davem@davemloft.net>