net/ice/base: choose TCP dummy packet by protocol
net/ice/base: choose TCP dummy packet by protocol

In order to find proper dummy packets for switch filter,
it need to check ipv4 next protocol number, if it is 0x06,
which means next payload is TCP, we need to use TCP
format dummy packet.

Signed-off-by: Wei Zhao <55941fd0e75edbdf274af2cfac8f147525678f08@intel.com>
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