OPNSense/src d764781sys/dev/ixgbe if_ix.c if_ixv.c, sys/net iflib.c

MFC r352910 and r352911

MFC r352910: iflib: Remove redundant VLAN events deregistration
MFC r352911: ix/ixv: Read MSI-X bar from device config

These fix an issue with a kernel panic on unload with an iflib-using
driver and allow certain HP-branded Intel 10G cards to use MSI-X,
respectively.

Approved by:    re@ (gjb@)
Sponsored by:   Intel Corporation
DeltaFile
+3-6sys/net/iflib.c
+3-2sys/dev/ixgbe/if_ix.c
+1-1sys/dev/ixgbe/if_ixv.c
+0-2sys/dev/ixgbe/ixgbe.h
+7-114 files

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