Merge branch 'mlxsw-spectrum_acl-Forbid-unsupported-filters'

Ido Schimmel says:

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mlxsw: spectrum_acl: Forbid unsupported filters

Patches #1-#2 make mlxsw reject unsupported egress filters. These
include filters that match on VLAN and filters associated with a
redirect action. Patch #1 rejects such filters when they are configured
on egress and patch #2 rejects such filters when they are configured in
a shared block that user tries to bind to egress.

Patch #3 forbids matching on reserved TCP flags as this is not supported
by the current keys that mlxsw uses.
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Signed-off-by: David S. Miller <davem@davemloft.net>