tg3: Do not include vlan acceleration features in vlan_features
tg3: Do not include vlan acceleration features in vlan_features

Including hardware acceleration features in vlan_features breaks
stacked vlans (Q-in-Q) by marking the bottom vlan interface as
capable of acceleration.  This causes one of the tags to be lost
and the packets are sent with a sing vlan header.

CC: Nithin Nayak Sujir <a41d72140302bfd55cac4982138967475b47eb43@broadcom.com>
CC: Michael Chan <6b52f9d672b6134057900fe608467612b789a84e@broadcom.com>
Signed-off-by: Vlad Yasevich <cbd80080413a7dff621bc5de2d3d61903bde20a2@redhat.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs