Support 'mode' parameter when creating macvtap device

Add support for 'mode' parameter when creating a macvtap device.
This allows a macvtap device to be created in bridge, private or
the default vepa modes.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>

-------------------------------------------------------------------
Acked-by: Arnd Bergmann <arnd@arndb.de>
2 files changed