Merge branch 'NCSI-vlan-filtering'

Samuel Mendoza-Jonas says:

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NCSI VLAN Filtering Support

This series (mainly patch 2) adds VLAN filtering to the NCSI implementation.
A fair amount of code already exists in the NCSI stack for VLAN filtering but
none of it is actually hooked up. This goes the final mile and fixes a few
bugs in the existing code found along the way (patch 1).

Patch 3 adds the appropriate flag and callbacks to the ftgmac100 driver to
enable filtering as it's a large consumer of NCSI (and what I've been
testing on).

v3:	- Add comment describing change to ncsi_find_filter()
	- Catch NULL in clear_one_vid() from ncsi_get_filter()
	- Simplify state changes when kicking updated channel
====================

Signed-off-by: David S. Miller <davem@davemloft.net>