net/iavf/base: support more link speeds
net/iavf/base: support more link speeds

Add 2.5G and 5G link speed support.

Signed-off-by: Paul M Stillwell Jr <e9d07c711ed532f6e96975f8a0cb18bd224808b8@intel.com>
Signed-off-by: Qi Zhang <9e9e58ffa71a29bb7b87766b362515be648fcbe0@intel.com>
Acked-by: Qiming Yang <6f20802c8a43e38f9b475618bd31b5b1ac8c8656@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk