fm10k: fix mac/vlan filtering

This patch includes 3 changes related to MAC/VLAN address table
when the system (e.g. testpmd) is started and closed:
 - remove default MAC address with fixed VLAN 0 which was for the
   debug purpose before the MAC/VLAN filter function was implemented.
 - enable VF MAC/VLAN filter for the first valid MAC address
   and first valid VLAN ID. This is needed for system (e.g. testpmd)
   to setup default MAC address and default VLAN for VF.
   Later attempt to change these default value will be refused by
   under layer shared code and PF host functions.
 - un-register any combination of VLAN and MAC address from fm10k
   switch side MAC table when the system (e.g. testpmd) is closed.

Signed-off-by: Shaopeng He <shaopeng.he@intel.com>
Acked-by: Jing Chen <jing.d.chen@intel.com>
Tested-by: Michael Qiu <michael.qiu@intel.com>