net/ixgbe: fix Rx LRO capability offload for x550
net/ixgbe: fix Rx LRO capability offload for x550

X550 does support LRO offload.

Fixes: 8eecb3295aed ("ixgbe: add LRO support")
Cc: stable@dpdk.org

Signed-off-by: Wei Zhao <55941fd0e75edbdf274af2cfac8f147525678f08@intel.com>
Reviewed-by: Qi Zhang <9e9e58ffa71a29bb7b87766b362515be648fcbe0@intel.com>

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