net: mana: Add new MANA VF performance counters for easier troubleshooting

Extended performance counter stats in 'ethtool -S <interface>' output
for MANA VF to facilitate troubleshooting.

Tested-on: Ubuntu22
Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>