Merge branch 'mlx5-build-fix'

Saeed Mahameed says:

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net/mlx5e: Kconfig fixes for VxLAN

Reposting to net the build errors fixes posted by Arnd last week.

Originally Arnd posted those fixes to net-next, while the issue
is also seen in net.  For net-next a different approach is required
for fixing the issue as VXLAN and Device Drivers are no longer
dependent, but there is no harm for those fixes to get into net-next.

Optionally, once net is merged into net-next we can
Revert "net/mlx5e: make VXLAN support conditional" as the
CONFIG_MLX5_CORE_EN_VXLAN will no longer be required.

Applied on top: 28892865 ('mlxsw: spectrum: Add missing rollback in flood configuration')
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Signed-off-by: David S. Miller <davem@davemloft.net>